115420512557 has 8 divisors (see below), whose sum is σ = 132177815232. Its totient is φ = 98730374400.

The previous prime is 115420512551. The next prime is 115420512563. The reversal of 115420512557 is 755215024511.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (115420512551) and next prime (115420512563).

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

It is a de Polignac number, because none of the positive numbers 2^k-115420512557 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 115420512557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115420512551) 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, 16787444 + ... + 16794317.

It is an arithmetic number, because the mean of its divisors is an integer number (16522226904).

Almost surely, 2^115420512557 is an apocalyptic number.

It is an amenable number.

115420512557 is a deficient number, since it is larger than the sum of its proper divisors (16757302675).

115420512557 is an equidigital number, since it uses as much as digits as its factorization.

115420512557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33582259.

The product of its (nonzero) digits is 70000, while the sum is 38.

The spelling of 115420512557 in words is "one hundred fifteen billion, four hundred twenty million, five hundred twelve thousand, five hundred fifty-seven".