2015553752055 has 96 divisors (see below), whose sum is σ = 3836916615168. Its totient is φ = 1011523852800.

The previous prime is 2015553752029. The next prime is 2015553752063. The reversal of 2015553752055 is 5502573555102.

2015553752055 is a `hidden beast` number, since 2 + 0 + 1 + 5 + 553 + 75 + 20 + 5 + 5 = 666.

It is not a de Polignac number, because 2015553752055 - 2²¹ = 2015551654903 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 2015553752055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 193965910 + ... + 193976300.

It is an arithmetic number, because the mean of its divisors is an integer number (39967881408).

Almost surely, 2^{2015553752055} is an apocalyptic number.

2015553752055 is a deficient number, since it is larger than the sum of its proper divisors (1821362863113).

2015553752055 is a wasteful number, since it uses less digits than its factorization.

2015553752055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19819 (or 19807 counting only the distinct ones).

The product of its (nonzero) digits is 1312500, while the sum is 45.

The spelling of 2015553752055 in words is "two trillion, fifteen billion, five hundred fifty-three million, seven hundred fifty-two thousand, fifty-five".