115666025530 has 32 divisors (see below), whose sum is σ = 230515968960. Its totient is φ = 41432603520.

The previous prime is 115666025479. The next prime is 115666025557. The reversal of 115666025530 is 35520666511.

115666025530 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×115666025530² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7839715 + ... + 7854454.

It is an arithmetic number, because the mean of its divisors is an integer number (7203624030).

Almost surely, 2^115666025530 is an apocalyptic number.

115666025530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115666025530 is a deficient number, since it is larger than the sum of its proper divisors (114849943430).

115666025530 is a wasteful number, since it uses less digits than its factorization.

115666025530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15694254.

The product of its (nonzero) digits is 162000, while the sum is 40.

The spelling of 115666025530 in words is "one hundred fifteen billion, six hundred sixty-six million, twenty-five thousand, five hundred thirty".