117806663520 has 384 divisors, whose sum is σ = 507476551680. Its totient is φ = 24855828480.

The previous prime is 117806663497. The next prime is 117806663581. The reversal of 117806663520 is 25366608711.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 243285 + ... + 542955.

It is an arithmetic number, because the mean of its divisors is an integer number (1321553520).

Almost surely, 2^117806663520 is an apocalyptic number.

117806663520 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 117806663520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253738275840).

117806663520 is an abundant number, since it is smaller than the sum of its proper divisors (389669888160).

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

117806663520 is a wasteful number, since it uses less digits than its factorization.

117806663520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299715 (or 299701 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 117806663520 in words is "one hundred seventeen billion, eight hundred six million, six hundred sixty-three thousand, five hundred twenty".