2015355015423 has 32 divisors (see below), whose sum is σ = 3026824486400. Its totient is φ = 1325071597248.

The previous prime is 2015355015329. The next prime is 2015355015491. The reversal of 2015355015423 is 3245105535102.

2015355015423 is a `hidden beast` number, since 2 + 0 + 1 + 53 + 550 + 1 + 54 + 2 + 3 = 666.

It is a Cunningham number, because it is equal to 1419632²-1.

It is not a de Polignac number, because 2015355015423 - 2¹⁰ = 2015355014399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2015355015523) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38303748 + ... + 38356326.

It is an arithmetic number, because the mean of its divisors is an integer number (94588265200).

Almost surely, 2^{2015355015423} is an apocalyptic number.

2015355015423 is a deficient number, since it is larger than the sum of its proper divisors (1011469470977).

2015355015423 is a wasteful number, since it uses less digits than its factorization.

2015355015423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72108 (or 72102 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

The spelling of 2015355015423 in words is "two trillion, fifteen billion, three hundred fifty-five million, fifteen thousand, four hundred twenty-three".