64118001752015 has 32 divisors (see below), whose sum is σ = 78711328172736. Its totient is φ = 50128876057600.

The previous prime is 64118001752003. The next prime is 64118001752023. The reversal of 64118001752015 is 51025710081146.

It is not a de Polignac number, because 64118001752015 - 2³⁸ = 63843123845071 is a prime.

It is a super-2 number, since 2×64118001752015² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

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, 45283529 + ... + 46677981.

It is an arithmetic number, because the mean of its divisors is an integer number (2459729005398).

Almost surely, 2^{64118001752015} is an apocalyptic number.

64118001752015 is a deficient number, since it is larger than the sum of its proper divisors (14593326420721).

64118001752015 is a wasteful number, since it uses less digits than its factorization.

64118001752015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1395739.

The product of its (nonzero) digits is 67200, while the sum is 41.

The spelling of 64118001752015 in words is "sixty-four trillion, one hundred eighteen billion, one million, seven hundred fifty-two thousand, fifteen".