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2666668083 = 31916477193
BaseRepresentation
bin1001111011110010…
…0010000000110011
320212211210202220120
42132330202000303
520430131334313
61120335541323
7123040206342
oct23674420063
96784722816
102666668083
1111492a0222
1262508a843
13336616011
141b4237b59
1510919dd23
hex9ef22033

2666668083 has 16 divisors (see below), whose sum is σ = 3580194816. Its totient is φ = 1765492160.

The previous prime is 2666668063. The next prime is 2666668087. The reversal of 2666668083 is 3808666662.

It is a cyclic number.

It is not a de Polignac number, because 2666668083 - 25 = 2666668051 is a prime.

It is a super-2 number, since 2×26666680832 = 14222237329781789778, which contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2666668087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 367135 + ... + 374327.

It is an arithmetic number, because the mean of its divisors is an integer number (223762176).

Almost surely, 22666668083 is an apocalyptic number.

2666668083 is a deficient number, since it is larger than the sum of its proper divisors (913526733).

2666668083 is a wasteful number, since it uses less digits than its factorization.

2666668083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8034.

The product of its (nonzero) digits is 2985984, while the sum is 51.

The square root of 2666668083 is about 51639.7916630189. The cubic root of 2666668083 is about 1386.7227942089.

It can be divided in two parts, 26666 and 68083, that added together give a palindrome (94749).

The spelling of 2666668083 in words is "two billion, six hundred sixty-six million, six hundred sixty-eight thousand, eighty-three".

Divisors: 1 3 191 573 647 1941 7193 21579 123577 370731 1373863 4121589 4653871 13961613 888889361 2666668083