64916043900 has 72 divisors (see below), whose sum is σ = 188216286720. Its totient is φ = 17274767040.

The previous prime is 64916043869. The next prime is 64916043911. The reversal of 64916043900 is 934061946.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 82174 + ... + 369573.

Almost surely, 2^64916043900 is an apocalyptic number.

64916043900 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64916043900 is an abundant number, since it is smaller than the sum of its proper divisors (123300242820).

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

64916043900 is a wasteful number, since it uses less digits than its factorization.

64916043900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452243 (or 452236 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 42.

The spelling of 64916043900 in words is "sixty-four billion, nine hundred sixteen million, forty-three thousand, nine hundred".