115566464431 has 8 divisors (see below), whose sum is σ = 126110214144. Its totient is φ = 105028999320.

The previous prime is 115566464417. The next prime is 115566464441. The reversal of 115566464431 is 134464665511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 115566464431 - 2²³ = 115558075823 is a prime.

It is a super-2 number, since 2×115566464431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115566464441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1532655 + ... + 1606288.

It is an arithmetic number, because the mean of its divisors is an integer number (15763776768).

Almost surely, 2^115566464431 is an apocalyptic number.

115566464431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

115566464431 is a deficient number, since it is larger than the sum of its proper divisors (10543749713).

115566464431 is a wasteful number, since it uses less digits than its factorization.

115566464431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3142301.

The product of its digits is 1036800, while the sum is 46.

The spelling of 115566464431 in words is "one hundred fifteen billion, five hundred sixty-six million, four hundred sixty-four thousand, four hundred thirty-one".