191232550168 has 32 divisors (see below), whose sum is σ = 396108864000. Its totient is φ = 85823580960.

The previous prime is 191232550139. The next prime is 191232550193. The reversal of 191232550168 is 861055232191.

It is a super-3 number, since 3×191232550168³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

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, 13746828 + ... + 13760731.

It is an arithmetic number, because the mean of its divisors is an integer number (12378402000).

Almost surely, 2^191232550168 is an apocalyptic number.

It is an amenable number.

191232550168 is an abundant number, since it is smaller than the sum of its proper divisors (204876313832).

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

191232550168 is a wasteful number, since it uses less digits than its factorization.

191232550168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27507655 (or 27507651 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 43.

The spelling of 191232550168 in words is "one hundred ninety-one billion, two hundred thirty-two million, five hundred fifty thousand, one hundred sixty-eight".