191160943992 has 96 divisors (see below), whose sum is σ = 529822172880. Its totient is φ = 62242352640.

The previous prime is 191160943991. The next prime is 191160943997. The reversal of 191160943992 is 299349061191.

It is a happy number.

191160943992 is a `hidden beast` number, since 1 + 9 + 1 + 160 + 94 + 399 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191160943991) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 755892 + ... + 976572.

Almost surely, 2^191160943992 is an apocalyptic number.

191160943992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 191160943992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264911086440).

191160943992 is an abundant number, since it is smaller than the sum of its proper divisors (338661228888).

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

191160943992 is a wasteful number, since it uses less digits than its factorization.

191160943992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220973 (or 220966 counting only the distinct ones).

The product of its (nonzero) digits is 944784, while the sum is 54.

The spelling of 191160943992 in words is "one hundred ninety-one billion, one hundred sixty million, nine hundred forty-three thousand, nine hundred ninety-two".