117666392921748 has 72 divisors (see below), whose sum is σ = 325377820272960. Its totient is φ = 35557160981760.

The previous prime is 117666392921711. The next prime is 117666392921761. The reversal of 117666392921748 is 847129293666711.

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, 413698165 + ... + 413982492.

It is an arithmetic number, because the mean of its divisors is an integer number (4519136392680).

Almost surely, 2^{117666392921748} is an apocalyptic number.

117666392921748 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

117666392921748 is an abundant number, since it is smaller than the sum of its proper divisors (207711427351212).

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

117666392921748 is a wasteful number, since it uses less digits than its factorization.

117666392921748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827681037 (or 827681032 counting only the distinct ones).

The product of its digits is 329204736, while the sum is 72.

The spelling of 117666392921748 in words is "one hundred seventeen trillion, six hundred sixty-six billion, three hundred ninety-two million, nine hundred twenty-one thousand, seven hundred forty-eight".