115777680 has 40 divisors (see below), whose sum is σ = 358911552. Its totient is φ = 30873984.

The previous prime is 115777679. The next prime is 115777691. The reversal of 115777680 is 86777511.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240964 + ... + 241443.

Almost surely, 2^115777680 is an apocalyptic number.

115777680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115777680 is an abundant number, since it is smaller than the sum of its proper divisors (243133872).

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

115777680 is a wasteful number, since it uses less digits than its factorization.

115777680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482423 (or 482417 counting only the distinct ones).

The product of its (nonzero) digits is 82320, while the sum is 42.

The square root of 115777680 is about 10760.0037174715. The cubic root of 115777680 is about 487.3881294912.

The spelling of 115777680 in words is "one hundred fifteen million, seven hundred seventy-seven thousand, six hundred eighty".