2015573305164 has 12 divisors (see below), whose sum is σ = 4703004378744. Its totient is φ = 671857768384.

The previous prime is 2015573305157. The next prime is 2015573305169. The reversal of 2015573305164 is 4615033755102.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (2015573305169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83982221037 + ... + 83982221060.

It is an arithmetic number, because the mean of its divisors is an integer number (391917031562).

Almost surely, 2^{2015573305164} is an apocalyptic number.

It is an amenable number.

2015573305164 is an abundant number, since it is smaller than the sum of its proper divisors (2687431073580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2015573305164 is a wasteful number, since it uses less digits than its factorization.

2015573305164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167964442104 (or 167964442102 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 42.

The spelling of 2015573305164 in words is "two trillion, fifteen billion, five hundred seventy-three million, three hundred five thousand, one hundred sixty-four".