65057887816 has 16 divisors (see below), whose sum is σ = 121997399040. Its totient is φ = 32525248080.

The previous prime is 65057887757. The next prime is 65057887849. The reversal of 65057887816 is 61878875056.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 386440 + ... + 528631.

It is an arithmetic number, because the mean of its divisors is an integer number (7624837440).

Almost surely, 2^65057887816 is an apocalyptic number.

It is an amenable number.

65057887816 is a deficient number, since it is larger than the sum of its proper divisors (56939511224).

65057887816 is a wasteful number, since it uses less digits than its factorization.

65057887816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 923964 (or 923960 counting only the distinct ones).

The product of its (nonzero) digits is 22579200, while the sum is 61.

The spelling of 65057887816 in words is "sixty-five billion, fifty-seven million, eight hundred eighty-seven thousand, eight hundred sixteen".