115039966140 has 288 divisors, whose sum is σ = 406703082240. Its totient is φ = 26025753600.

The previous prime is 115039966133. The next prime is 115039966177. The reversal of 115039966140 is 41669930511.

115039966140 is a `hidden beast` number, since 11 + 50 + 399 + 66 + 140 = 666.

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 polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2497720 + ... + 2543360.

It is an arithmetic number, because the mean of its divisors is an integer number (1412163480).

Almost surely, 2^115039966140 is an apocalyptic number.

115039966140 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 115039966140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203351541120).

115039966140 is an abundant number, since it is smaller than the sum of its proper divisors (291663116100).

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

115039966140 is a wasteful number, since it uses less digits than its factorization.

115039966140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45753 (or 45748 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 45.

The spelling of 115039966140 in words is "one hundred fifteen billion, thirty-nine million, nine hundred sixty-six thousand, one hundred forty".