191056153328 has 20 divisors (see below), whose sum is σ = 374330527920. Its totient is φ = 94454726784.

The previous prime is 191056153273. The next prime is 191056153363. The reversal of 191056153328 is 823351650191.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67082900 + ... + 67085747.

It is an arithmetic number, because the mean of its divisors is an integer number (18716526396).

Almost surely, 2^191056153328 is an apocalyptic number.

It is an amenable number.

191056153328 is a deficient number, since it is larger than the sum of its proper divisors (183274374592).

191056153328 is a wasteful number, since it uses less digits than its factorization.

191056153328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134168744 (or 134168738 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 44.

The spelling of 191056153328 in words is "one hundred ninety-one billion, fifty-six million, one hundred fifty-three thousand, three hundred twenty-eight".