65016644990 has 32 divisors (see below), whose sum is σ = 127741277664. Its totient is φ = 23629040640.

The previous prime is 65016644963. The next prime is 65016645037. The reversal of 65016644990 is 9944661056.

It is a congruent number.

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, 29162 + ... + 361778.

It is an arithmetic number, because the mean of its divisors is an integer number (3991914927).

Almost surely, 2^65016644990 is an apocalyptic number.

65016644990 is a deficient number, since it is larger than the sum of its proper divisors (62724632674).

65016644990 is a wasteful number, since it uses less digits than its factorization.

65016644990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334412.

The product of its (nonzero) digits is 1399680, while the sum is 50.

The spelling of 65016644990 in words is "sixty-five billion, sixteen million, six hundred forty-four thousand, nine hundred ninety".