115677661 has 16 divisors (see below), whose sum is σ = 128537280. Its totient is φ = 103227520.

The previous prime is 115677659. The next prime is 115677671. The reversal of 115677661 is 166776511.

It is not a de Polignac number, because 115677661 - 2¹ = 115677659 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 (115677631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169026 + ... + 169708.

It is an arithmetic number, because the mean of its divisors is an integer number (8033580).

Almost surely, 2^115677661 is an apocalyptic number.

115677661 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

115677661 is a deficient number, since it is larger than the sum of its proper divisors (12859619).

115677661 is a wasteful number, since it uses less digits than its factorization.

115677661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956.

The product of its digits is 52920, while the sum is 40.

The square root of 115677661 is about 10755.3549918169. The cubic root of 115677661 is about 487.2477393985.

It can be divided in two parts, 115 and 677661, that added together give a palindrome (677776).

The spelling of 115677661 in words is "one hundred fifteen million, six hundred seventy-seven thousand, six hundred sixty-one".