2155456502102 has 16 divisors (see below), whose sum is σ = 3407088268800. Its totient is φ = 1019884942440.

The previous prime is 2155456502057. The next prime is 2155456502113. The reversal of 2155456502102 is 2012056545512.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31097402 + ... + 31166637.

It is an arithmetic number, because the mean of its divisors is an integer number (212943016800).

Almost surely, 2^{2155456502102} is an apocalyptic number.

2155456502102 is a deficient number, since it is larger than the sum of its proper divisors (1251631766698).

2155456502102 is a wasteful number, since it uses less digits than its factorization.

2155456502102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62264971.

The product of its (nonzero) digits is 120000, while the sum is 38.

The spelling of 2155456502102 in words is "two trillion, one hundred fifty-five billion, four hundred fifty-six million, five hundred two thousand, one hundred two".