64133155505958 has 64 divisors (see below), whose sum is σ = 169323289118208. Its totient is φ = 15678082321920.

The previous prime is 64133155505933. The next prime is 64133155505963. The reversal of 64133155505958 is 85950555133146.

It is a super-2 number, since 2×64133155505958² (a number of 28 digits) contains 22 as substring.

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, 4082826085 + ... + 4082841792.

It is an arithmetic number, because the mean of its divisors is an integer number (2645676392472).

Almost surely, 2^{64133155505958} is an apocalyptic number.

64133155505958 is an abundant number, since it is smaller than the sum of its proper divisors (105190133612250).

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

64133155505958 is a wasteful number, since it uses less digits than its factorization.

64133155505958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8165667917.

The product of its (nonzero) digits is 48600000, while the sum is 60.

The spelling of 64133155505958 in words is "sixty-four trillion, one hundred thirty-three billion, one hundred fifty-five million, five hundred five thousand, nine hundred fifty-eight".