65864035632 has 80 divisors (see below), whose sum is σ = 170783701088. Its totient is φ = 21872885760.

The previous prime is 65864035607. The next prime is 65864035649. The reversal of 65864035632 is 23653046856.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31169808 + ... + 31171920.

Almost surely, 2^65864035632 is an apocalyptic number.

It is an amenable number.

65864035632 is an abundant number, since it is smaller than the sum of its proper divisors (104919665456).

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

65864035632 is a wasteful number, since it uses less digits than its factorization.

65864035632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4238 (or 4232 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 48.

The spelling of 65864035632 in words is "sixty-five billion, eight hundred sixty-four million, thirty-five thousand, six hundred thirty-two".