2155653550402 has 16 divisors (see below), whose sum is σ = 3536057628000. Its totient is φ = 977446815840.

The previous prime is 2155653550397. The next prime is 2155653550423. The reversal of 2155653550402 is 2040553565512.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119776152 + ... + 119794147.

It is an arithmetic number, because the mean of its divisors is an integer number (221003601750).

Almost surely, 2^{2155653550402} is an apocalyptic number.

2155653550402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2155653550402 is a deficient number, since it is larger than the sum of its proper divisors (1380404077598).

2155653550402 is a wasteful number, since it uses less digits than its factorization.

2155653550402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239570721.

The product of its (nonzero) digits is 900000, while the sum is 43.

The spelling of 2155653550402 in words is "two trillion, one hundred fifty-five billion, six hundred fifty-three million, five hundred fifty thousand, four hundred two".