190881616445560 has 64 divisors (see below), whose sum is σ = 431161728585120. Its totient is φ = 76054328770560.

The previous prime is 190881616445539. The next prime is 190881616445579. The reversal of 190881616445560 is 65544616188091.

It is a junction number, because it is equal to n+sod(n) for n = 190881616445492 and 190881616445501.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 902591352 + ... + 902802808.

Almost surely, 2^{190881616445560} is an apocalyptic number.

190881616445560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

190881616445560 is an abundant number, since it is smaller than the sum of its proper divisors (240280112139560).

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

190881616445560 is a wasteful number, since it uses less digits than its factorization.

190881616445560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299536 (or 299532 counting only the distinct ones).

The product of its (nonzero) digits is 49766400, while the sum is 64.

The spelling of 190881616445560 in words is "one hundred ninety trillion, eight hundred eighty-one billion, six hundred sixteen million, four hundred forty-five thousand, five hundred sixty".