115772566 has 32 divisors (see below), whose sum is σ = 214885440. Its totient is φ = 45553536.

The previous prime is 115772551. The next prime is 115772581. The reversal of 115772566 is 665277511.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (115772551) and next prime (115772581).

It is a super-3 number, since 3×115772566³ (a number of 25 digits) contains 333 as substring.

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, 34240 + ... + 37468.

It is an arithmetic number, because the mean of its divisors is an integer number (6715170).

Almost surely, 2^115772566 is an apocalyptic number.

115772566 is a deficient number, since it is larger than the sum of its proper divisors (99112874).

115772566 is a wasteful number, since it uses less digits than its factorization.

115772566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3448.

The product of its digits is 88200, while the sum is 40.

The square root of 115772566 is about 10759.7660755241. The cubic root of 115772566 is about 487.3809532675.

The spelling of 115772566 in words is "one hundred fifteen million, seven hundred seventy-two thousand, five hundred sixty-six".