115498969715520 has 672 divisors, whose sum is σ = 406024148275200. Its totient is φ = 30129037406208.

The previous prime is 115498969715509. The next prime is 115498969715543. The reversal of 115498969715520 is 25517969894511.

It is a happy number.

115498969715520 is a `hidden beast` number, since 1 + 1 + 5 + 4 + 9 + 8 + 9 + 6 + 97 + 1 + 5 + 520 = 666.

It is a super-2 number, since 2×115498969715520² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

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, 16540017949 + ... + 16540024931.

It is an arithmetic number, because the mean of its divisors is an integer number (604202601600).

Almost surely, 2^{115498969715520} is an apocalyptic number.

115498969715520 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 115498969715520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203012074137600).

115498969715520 is an abundant number, since it is smaller than the sum of its proper divisors (290525178559680).

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

115498969715520 is a wasteful number, since it uses less digits than its factorization.

115498969715520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7747 (or 7734 counting only the distinct ones).

The product of its (nonzero) digits is 244944000, while the sum is 72.

The spelling of 115498969715520 in words is "one hundred fifteen trillion, four hundred ninety-eight billion, nine hundred sixty-nine million, seven hundred fifteen thousand, five hundred twenty".