64867503516 has 24 divisors (see below), whose sum is σ = 152359880064. Its totient is φ = 21479305200.

The previous prime is 64867503509. The next prime is 64867503523. The reversal of 64867503516 is 61530576846.

It is an interprime number because it is at equal distance from previous prime (64867503509) and next prime (64867503523).

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, 17897610 + ... + 17901233.

It is an arithmetic number, because the mean of its divisors is an integer number (6348328336).

Almost surely, 2^64867503516 is an apocalyptic number.

It is an amenable number.

64867503516 is an abundant number, since it is smaller than the sum of its proper divisors (87492376548).

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

64867503516 is a wasteful number, since it uses less digits than its factorization.

64867503516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35799001 (or 35798999 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 51.

The spelling of 64867503516 in words is "sixty-four billion, eight hundred sixty-seven million, five hundred three thousand, five hundred sixteen".