65018238036015 has 128 divisors (see below), whose sum is σ = 115510687248384. Its totient is φ = 31225694438400.

The previous prime is 65018238035999. The next prime is 65018238036019. The reversal of 65018238036015 is 51063083281056.

It is not a de Polignac number, because 65018238036015 - 2⁴ = 65018238035999 is a prime.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65018238036019) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1266374245 + ... + 1266425585.

It is an arithmetic number, because the mean of its divisors is an integer number (902427244128).

Almost surely, 2^{65018238036015} is an apocalyptic number.

65018238036015 is a deficient number, since it is larger than the sum of its proper divisors (50492449212369).

65018238036015 is a wasteful number, since it uses less digits than its factorization.

65018238036015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51982 (or 51960 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 48.

The spelling of 65018238036015 in words is "sixty-five trillion, eighteen billion, two hundred thirty-eight million, thirty-six thousand, fifteen".