2015767155423 has 16 divisors (see below), whose sum is σ = 3092260262400. Its totient is φ = 1144136293536.

The previous prime is 2015767155371. The next prime is 2015767155433. The reversal of 2015767155423 is 3245517675102.

It is not a de Polignac number, because 2015767155423 - 2⁸ = 2015767155167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2015767155433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 322107315 + ... + 322113572.

It is an arithmetic number, because the mean of its divisors is an integer number (193266266400).

Almost surely, 2^{2015767155423} is an apocalyptic number.

2015767155423 is a deficient number, since it is larger than the sum of its proper divisors (1076493106977).

2015767155423 is a wasteful number, since it uses less digits than its factorization.

2015767155423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644221046.

The product of its (nonzero) digits is 1764000, while the sum is 48.

The spelling of 2015767155423 in words is "two trillion, fifteen billion, seven hundred sixty-seven million, one hundred fifty-five thousand, four hundred twenty-three".