66455133 has 8 divisors (see below), whose sum is σ = 90492288. Its totient is φ = 43360704.

The previous prime is 66455131. The next prime is 66455149. The reversal of 66455133 is 33155466.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 66455133 - 2¹ = 66455131 is a prime.

It is a super-3 number, since 3×66455133³ (a number of 24 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 66455094 and 66455103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66455131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235516 + ... + 235797.

It is an arithmetic number, because the mean of its divisors is an integer number (11311536).

Almost surely, 2^66455133 is an apocalyptic number.

It is an amenable number.

66455133 is a deficient number, since it is larger than the sum of its proper divisors (24037155).

66455133 is a wasteful number, since it uses less digits than its factorization.

66455133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471363.

The product of its digits is 32400, while the sum is 33.

The square root of 66455133 is about 8152.0017787044. The cubic root of 66455133 is about 405.0508151451.

The spelling of 66455133 in words is "sixty-six million, four hundred fifty-five thousand, one hundred thirty-three".