64199167025452 has 48 divisors (see below), whose sum is σ = 117203013698400. Its totient is φ = 30732246702080.

The previous prime is 64199167025449. The next prime is 64199167025471. The reversal of 64199167025452 is 25452076199146.

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, 2950302 + ... + 11709082.

It is an arithmetic number, because the mean of its divisors is an integer number (2441729452050).

Almost surely, 2^{64199167025452} is an apocalyptic number.

It is an amenable number.

64199167025452 is a deficient number, since it is larger than the sum of its proper divisors (53003846672948).

64199167025452 is a wasteful number, since it uses less digits than its factorization.

64199167025452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8759346 (or 8759344 counting only the distinct ones).

The product of its (nonzero) digits is 32659200, while the sum is 61.

The spelling of 64199167025452 in words is "sixty-four trillion, one hundred ninety-nine billion, one hundred sixty-seven million, twenty-five thousand, four hundred fifty-two".