115557155605 has 8 divisors (see below), whose sum is σ = 138750310872. Its totient is φ = 92391241728.

The previous prime is 115557155599. The next prime is 115557155617. The reversal of 115557155605 is 506551755511.

It can be written as a sum of positive squares in 4 ways, for example, as 5774936049 + 109782219556 = 75993^2 + 331334^2 .

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 115557155605 - 2²¹ = 115555058453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6801012 + ... + 6817981.

It is an arithmetic number, because the mean of its divisors is an integer number (17343788859).

Almost surely, 2^115557155605 is an apocalyptic number.

It is an amenable number.

115557155605 is a deficient number, since it is larger than the sum of its proper divisors (23193155267).

115557155605 is a wasteful number, since it uses less digits than its factorization.

115557155605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13620695.

The product of its (nonzero) digits is 656250, while the sum is 46.

The spelling of 115557155605 in words is "one hundred fifteen billion, five hundred fifty-seven million, one hundred fifty-five thousand, six hundred five".