118566592225 has 27 divisors (see below), whose sum is σ = 156218252601. Its totient is φ = 89251632000.

The previous prime is 118566592219. The next prime is 118566592231. The reversal of 118566592225 is 522295665811.

The square root of 118566592225 is 344335.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (118566592219) and next prime (118566592231).

It can be written as a sum of positive squares in 4 ways, for example, as 2773391569 + 115793200656 = 52663^2 + 340284^2 .

It is not a de Polignac number, because 118566592225 - 2³ = 118566592217 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 29266450 + ... + 29270500.

Almost surely, 2^118566592225 is an apocalyptic number.

118566592225 is the 344335-th square number.

118566592225 is the 172168-th centered octagonal number.

It is an amenable number.

118566592225 is a deficient number, since it is larger than the sum of its proper divisors (37651660376).

118566592225 is an frugal number, since it uses more digits than its factorization.

118566592225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8146 (or 4073 counting only the distinct ones).

The product of its digits is 2592000, while the sum is 52.

The spelling of 118566592225 in words is "one hundred eighteen billion, five hundred sixty-six million, five hundred ninety-two thousand, two hundred twenty-five".