117661626320 has 120 divisors (see below), whose sum is σ = 323444162088. Its totient is φ = 39679718400.

The previous prime is 117661626319. The next prime is 117661626349. The reversal of 117661626320 is 23626166711.

It can be written as a sum of positive squares in 4 ways, for example, as 703098256 + 116958528064 = 26516^2 + 341992^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6911 + ... + 485150.

Almost surely, 2^117661626320 is an apocalyptic number.

117661626320 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 117661626320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161722081044).

117661626320 is an abundant number, since it is smaller than the sum of its proper divisors (205782535768).

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

117661626320 is a wasteful number, since it uses less digits than its factorization.

117661626320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492149 (or 492136 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 41.

The spelling of 117661626320 in words is "one hundred seventeen billion, six hundred sixty-one million, six hundred twenty-six thousand, three hundred twenty".