65497568190 has 16 divisors (see below), whose sum is σ = 157194163728. Its totient is φ = 17466018176.

The previous prime is 65497568179. The next prime is 65497568221. The reversal of 65497568190 is 9186579456.

It is a super-2 number, since 2×65497568190² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1091626107 + ... + 1091626166.

It is an arithmetic number, because the mean of its divisors is an integer number (9824635233).

Almost surely, 2^65497568190 is an apocalyptic number.

65497568190 is an abundant number, since it is smaller than the sum of its proper divisors (91696595538).

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

65497568190 is a wasteful number, since it uses less digits than its factorization.

65497568190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2183252283.

The product of its (nonzero) digits is 16329600, while the sum is 60.

The spelling of 65497568190 in words is "sixty-five billion, four hundred ninety-seven million, five hundred sixty-eight thousand, one hundred ninety".