65655455656 has 16 divisors (see below), whose sum is σ = 140690262240. Its totient is φ = 28138052400.

The previous prime is 65655455639. The next prime is 65655455707.

It is a happy number.

65655455656 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 65655455656.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 586209370 + ... + 586209481.

It is an arithmetic number, because the mean of its divisors is an integer number (8793141390).

Almost surely, 2^65655455656 is an apocalyptic number.

It is an amenable number.

65655455656 is an abundant number, since it is smaller than the sum of its proper divisors (75034806584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65655455656 is a wasteful number, since it uses less digits than its factorization.

65655455656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1172418864 (or 1172418860 counting only the distinct ones).

The product of its digits is 81000000, while the sum is 58.

The spelling of 65655455656 in words is "sixty-five billion, six hundred fifty-five million, four hundred fifty-five thousand, six hundred fifty-six".