2155566052200 has 96 divisors (see below), whose sum is σ = 7289732489760. Its totient is φ = 522561465600.

The previous prime is 2155566052193. The next prime is 2155566052229. The reversal of 2155566052200 is 22506655512.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 163293859 + ... + 163307058.

It is an arithmetic number, because the mean of its divisors is an integer number (75934713435).

Almost surely, 2^{2155566052200} is an apocalyptic number.

2155566052200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2155566052200 is an abundant number, since it is smaller than the sum of its proper divisors (5134166437560).

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

2155566052200 is a wasteful number, since it uses less digits than its factorization.

2155566052200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326600947 (or 326600938 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 39.

The spelling of 2155566052200 in words is "two trillion, one hundred fifty-five billion, five hundred sixty-six million, fifty-two thousand, two hundred".