65716670512 has 40 divisors (see below), whose sum is σ = 133294968576. Its totient is φ = 31327281216.

The previous prime is 65716670501. The next prime is 65716670519. The reversal of 65716670512 is 21507661756.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is not an unprimeable number, because it can be changed into a prime (65716670519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177868 + ... + 403819.

Almost surely, 2^65716670512 is an apocalyptic number.

It is an amenable number.

65716670512 is an abundant number, since it is smaller than the sum of its proper divisors (67578298064).

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

65716670512 is a wasteful number, since it uses less digits than its factorization.

65716670512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582025 (or 582019 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 46.

The spelling of 65716670512 in words is "sixty-five billion, seven hundred sixteen million, six hundred seventy thousand, five hundred twelve".