881657149156 has 81 divisors (see below), whose sum is σ = 1835087802051. Its totient is φ = 369554482416.

The previous prime is 881657149073. The next prime is 881657149157. The reversal of 881657149156 is 651941756188.

The square root of 881657149156 is 938966.

It is a perfect power (a square), and thus also a powerful number.

It is a junction number, because it is equal to n+sod(n) for n = 881657149094 and 881657149103.

It is not an unprimeable number, because it can be changed into a prime (881657149157) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 617838915 + ... + 617840341.

Almost surely, 2^881657149156 is an apocalyptic number.

881657149156 is the 938966-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 881657149156

881657149156 is an abundant number, since it is smaller than the sum of its proper divisors (953430652895).

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

881657149156 is an equidigital number, since it uses as much as digits as its factorization.

881657149156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2966 (or 1483 counting only the distinct ones).

The product of its digits is 14515200, while the sum is 61.

The spelling of 881657149156 in words is "eight hundred eighty-one billion, six hundred fifty-seven million, one hundred forty-nine thousand, one hundred fifty-six".