117118921550 has 48 divisors (see below), whose sum is σ = 223000905600. Its totient is φ = 45738870240.

The previous prime is 117118921531. The next prime is 117118921567. The reversal of 117118921550 is 55129811711.

It is a junction number, because it is equal to n+sod(n) for n = 117118921498 and 117118921507.

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, 5792759 + ... + 5812941.

It is an arithmetic number, because the mean of its divisors is an integer number (4645852200).

Almost surely, 2^117118921550 is an apocalyptic number.

117118921550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

117118921550 is a deficient number, since it is larger than the sum of its proper divisors (105881984050).

117118921550 is a wasteful number, since it uses less digits than its factorization.

117118921550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22937 (or 22932 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 41.

The spelling of 117118921550 in words is "one hundred seventeen billion, one hundred eighteen million, nine hundred twenty-one thousand, five hundred fifty".