64942408120128 has 224 divisors, whose sum is σ = 214956765757440. Its totient is φ = 16810586327040.

The previous prime is 64942408120099. The next prime is 64942408120189. The reversal of 64942408120128 is 82102180424946.

It is a tau number, because it is divible by the number of its divisors (224).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3164448 + ... + 11827871.

It is an arithmetic number, because the mean of its divisors is an integer number (959628418560).

Almost surely, 2^{64942408120128} is an apocalyptic number.

It is an amenable number.

64942408120128 is an abundant number, since it is smaller than the sum of its proper divisors (150014357637312).

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

64942408120128 is a wasteful number, since it uses less digits than its factorization.

64942408120128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14992645 (or 14992635 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 51.

The spelling of 64942408120128 in words is "sixty-four trillion, nine hundred forty-two billion, four hundred eight million, one hundred twenty thousand, one hundred twenty-eight".