65320570832 has 40 divisors (see below), whose sum is σ = 138164421792. Its totient is φ = 29669558400.

The previous prime is 65320570817. The next prime is 65320570841. The reversal of 65320570832 is 23807502356.

It is a self number, because there is not a number n which added to its sum of digits gives 65320570832.

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, 108683 + ... + 377429.

Almost surely, 2^65320570832 is an apocalyptic number.

It is an amenable number.

65320570832 is an abundant number, since it is smaller than the sum of its proper divisors (72843850960).

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

65320570832 is a wasteful number, since it uses less digits than its factorization.

65320570832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270147 (or 270141 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 41.

The spelling of 65320570832 in words is "sixty-five billion, three hundred twenty million, five hundred seventy thousand, eight hundred thirty-two".