65610166636 has 12 divisors (see below), whose sum is σ = 131220333328. Its totient is φ = 28118642832.

The previous prime is 65610166619. The next prime is 65610166637. The reversal of 65610166636 is 63666101656.

65610166636 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (65610166637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1171610091 + ... + 1171610146.

Almost surely, 2^65610166636 is an apocalyptic number.

It is an amenable number.

65610166636 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

65610166636 is a wasteful number, since it uses less digits than its factorization.

65610166636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2343220248 (or 2343220246 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 46.

The spelling of 65610166636 in words is "sixty-five billion, six hundred ten million, one hundred sixty-six thousand, six hundred thirty-six".