189655556442 has 16 divisors (see below), whose sum is σ = 413793941472. Its totient is φ = 57471380720.

The previous prime is 189655556393. The next prime is 189655556477. The reversal of 189655556442 is 244655556981.

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, 1436784453 + ... + 1436784584.

It is an arithmetic number, because the mean of its divisors is an integer number (25862121342).

Almost surely, 2^189655556442 is an apocalyptic number.

189655556442 is an abundant number, since it is smaller than the sum of its proper divisors (224138385030).

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

189655556442 is a wasteful number, since it uses less digits than its factorization.

189655556442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2873569053.

The product of its digits is 51840000, while the sum is 60.

The spelling of 189655556442 in words is "one hundred eighty-nine billion, six hundred fifty-five million, five hundred fifty-six thousand, four hundred forty-two".