191385941943160 has 128 divisors (see below), whose sum is σ = 439005103257600. Its totient is φ = 75076560000000.

The previous prime is 191385941943137. The next prime is 191385941943193. The reversal of 191385941943160 is 61349149583191.

It is a super-2 number, since 2×191385941943160² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 191385941943092 and 191385941943101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6203541735 + ... + 6203572585.

It is an arithmetic number, because the mean of its divisors is an integer number (3429727369200).

Almost surely, 2^{191385941943160} is an apocalyptic number.

191385941943160 is a gapful number since it is divisible by the number (10) 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 191385941943160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219502551628800).

191385941943160 is an abundant number, since it is smaller than the sum of its proper divisors (247619161314440).

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

191385941943160 is a wasteful number, since it uses less digits than its factorization.

191385941943160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44093 (or 44089 counting only the distinct ones).

The product of its (nonzero) digits is 25194240, while the sum is 64.

The spelling of 191385941943160 in words is "one hundred ninety-one trillion, three hundred eighty-five billion, nine hundred forty-one million, nine hundred forty-three thousand, one hundred sixty".