115555776 has 112 divisors (see below), whose sum is σ = 352690176. Its totient is φ = 32707584.

The previous prime is 115555763. The next prime is 115555793. The reversal of 115555776 is 677555511.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (112).

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170350 + ... + 171026.

Almost surely, 2^115555776 is an apocalyptic number.

115555776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115555776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176345088).

115555776 is an abundant number, since it is smaller than the sum of its proper divisors (237134400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115555776 is a wasteful number, since it uses less digits than its factorization.

With its successor (115555777) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (816).

115555776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826 (or 816 counting only the distinct ones).

The product of its digits is 183750, while the sum is 42.

The square root of 115555776 is about 10749.6872512646. The cubic root of 115555776 is about 487.0765480012.

The spelling of 115555776 in words is "one hundred fifteen million, five hundred fifty-five thousand, seven hundred seventy-six".