115200111557 has 8 divisors (see below), whose sum is σ = 115418905560. Its totient is φ = 114981376000.

The previous prime is 115200111547. The next prime is 115200111563. The reversal of 115200111557 is 755111002511.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 198415396 + 115001696161 = 14086^2 + 339119^2 .

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 115200111557 - 2⁶ = 115200111493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115200111547) 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, 7191557 + ... + 7207557.

It is an arithmetic number, because the mean of its divisors is an integer number (14427363195).

Almost surely, 2^115200111557 is an apocalyptic number.

It is an amenable number.

115200111557 is a deficient number, since it is larger than the sum of its proper divisors (218794003).

115200111557 is a wasteful number, since it uses less digits than its factorization.

115200111557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29223.

The product of its (nonzero) digits is 1750, while the sum is 29.

The spelling of 115200111557 in words is "one hundred fifteen billion, two hundred million, one hundred eleven thousand, five hundred fifty-seven".