66536056955 has 16 divisors (see below), whose sum is σ = 81343819200. Its totient is φ = 52235808768.

The previous prime is 66536056931. The next prime is 66536056957. The reversal of 66536056955 is 55965063566.

It is a cyclic number.

It is not a de Polignac number, because 66536056955 - 2²⁸ = 66267621499 is a prime.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 66536056955.

It is not an unprimeable number, because it can be changed into a prime (66536056957) 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, 385382 + ... + 530651.

It is an arithmetic number, because the mean of its divisors is an integer number (5083988700).

Almost surely, 2^66536056955 is an apocalyptic number.

66536056955 is a deficient number, since it is larger than the sum of its proper divisors (14807762245).

66536056955 is a wasteful number, since it uses less digits than its factorization.

66536056955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916310.

The product of its (nonzero) digits is 21870000, while the sum is 56.

The spelling of 66536056955 in words is "sixty-six billion, five hundred thirty-six million, fifty-six thousand, nine hundred fifty-five".