64415553745115 has 8 divisors (see below), whose sum is σ = 77528037387840. Its totient is φ = 51379527733632.

The previous prime is 64415553745069. The next prime is 64415553745133. The reversal of 64415553745115 is 51154735551446.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64415553745115 - 2⁶ = 64415553745051 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19114405955 + ... + 19114409324.

It is an arithmetic number, because the mean of its divisors is an integer number (9691004673480).

Almost surely, 2^{64415553745115} is an apocalyptic number.

64415553745115 is a deficient number, since it is larger than the sum of its proper divisors (13112483642725).

64415553745115 is a wasteful number, since it uses less digits than its factorization.

64415553745115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38228815621.

The product of its digits is 25200000, while the sum is 56.

The spelling of 64415553745115 in words is "sixty-four trillion, four hundred fifteen billion, five hundred fifty-three million, seven hundred forty-five thousand, one hundred fifteen".