2155266655052 has 24 divisors (see below), whose sum is σ = 4537403485440. Its totient is φ = 875070671760.

The previous prime is 2155266655049. The next prime is 2155266655097. The reversal of 2155266655052 is 2505566625512.

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, 2025626024 + ... + 2025627087.

It is an arithmetic number, because the mean of its divisors is an integer number (189058478560).

Almost surely, 2^{2155266655052} is an apocalyptic number.

It is an amenable number.

2155266655052 is an abundant number, since it is smaller than the sum of its proper divisors (2382136830388).

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

2155266655052 is a wasteful number, since it uses less digits than its factorization.

2155266655052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4051253141 (or 4051253139 counting only the distinct ones).

The product of its (nonzero) digits is 5400000, while the sum is 50.

The spelling of 2155266655052 in words is "two trillion, one hundred fifty-five billion, two hundred sixty-six million, six hundred fifty-five thousand, fifty-two".