190889980556 has 48 divisors (see below), whose sum is σ = 388361917440. Its totient is φ = 81229758720.

The previous prime is 190889980553. The next prime is 190889980573. The reversal of 190889980556 is 655089988091.

It is not an unprimeable number, because it can be changed into a prime (190889980553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1959101 + ... + 2054228.

It is an arithmetic number, because the mean of its divisors is an integer number (8090873280).

Almost surely, 2^190889980556 is an apocalyptic number.

It is an amenable number.

190889980556 is an abundant number, since it is smaller than the sum of its proper divisors (197471936884).

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

190889980556 is a wasteful number, since it uses less digits than its factorization.

190889980556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4013414 (or 4013412 counting only the distinct ones).

The product of its (nonzero) digits is 55987200, while the sum is 68.

The spelling of 190889980556 in words is "one hundred ninety billion, eight hundred eighty-nine million, nine hundred eighty thousand, five hundred fifty-six".