190440097668 has 72 divisors (see below), whose sum is σ = 482721657600. Its totient is φ = 63304652736.

The previous prime is 190440097607. The next prime is 190440097693. The reversal of 190440097668 is 866790044091.

190440097668 is a `hidden beast` number, since 1 + 90 + 4 + 400 + 97 + 6 + 68 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

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, 34985355 + ... + 34990797.

Almost surely, 2^190440097668 is an apocalyptic number.

190440097668 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

190440097668 is an abundant number, since it is smaller than the sum of its proper divisors (292281559932).

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

190440097668 is a wasteful number, since it uses less digits than its factorization.

190440097668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7961 (or 7956 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The spelling of 190440097668 in words is "one hundred ninety billion, four hundred forty million, ninety-seven thousand, six hundred sixty-eight".