992155444900 has 27 divisors (see below), whose sum is σ = 2152998930369. Its totient is φ = 396858193680.

The previous prime is 992155444873. The next prime is 992155444919. The reversal of 992155444900 is 9444551299.

The square root of 992155444900 is 996070.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 357175960164 + 634979484736 = 597642^2 + 796856^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 9910897 + ... + 10010503.

Almost surely, 2^992155444900 is an apocalyptic number.

992155444900 is the 996070-th square number.

It is an amenable number.

992155444900 is an abundant number, since it is smaller than the sum of its proper divisors (1160843485469).

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

992155444900 is an frugal number, since it uses more digits than its factorization.

992155444900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199228 (or 99614 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 52.

The spelling of 992155444900 in words is "nine hundred ninety-two billion, one hundred fifty-five million, four hundred forty-four thousand, nine hundred".