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2666949151 is a prime number
BaseRepresentation
bin1001111011110110…
…0110101000011111
320212212100001110111
42132331212220133
520430214333101
61120345550451
7123042456646
oct23675465037
96785301414
102666949151
111149472409
126251a5427
133366b3c29
141b42ac35d
15109207251
hex9ef66a1f

2666949151 has 2 divisors, whose sum is σ = 2666949152. Its totient is φ = 2666949150.

The previous prime is 2666949119. The next prime is 2666949157. The reversal of 2666949151 is 1519496662.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2666949151 - 25 = 2666949119 is a prime.

It is a super-2 number, since 2×26669491512 = 14225235548039241602, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2666949095 and 2666949104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2666949157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1333474575 + 1333474576.

It is an arithmetic number, because the mean of its divisors is an integer number (1333474576).

Almost surely, 22666949151 is an apocalyptic number.

2666949151 is a deficient number, since it is larger than the sum of its proper divisors (1).

2666949151 is an equidigital number, since it uses as much as digits as its factorization.

2666949151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 699840, while the sum is 49.

The square root of 2666949151 is about 51642.5130197979. The cubic root of 2666949151 is about 1386.7715128967.

The spelling of 2666949151 in words is "two billion, six hundred sixty-six million, nine hundred forty-nine thousand, one hundred fifty-one".