258118216 has 32 divisors (see below), whose sum is σ = 501515640. Its totient is φ = 124443648.

The previous prime is 258118193. The next prime is 258118277. The reversal of 258118216 is 612811852.

It can be written as a sum of positive squares in 4 ways, for example, as 199656900 + 58461316 = 14130^2 + 7646^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29590 + ... + 37306.

Almost surely, 2^258118216 is an apocalyptic number.

It is an amenable number.

258118216 is a deficient number, since it is larger than the sum of its proper divisors (243397424).

258118216 is a wasteful number, since it uses less digits than its factorization.

258118216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7873 (or 7869 counting only the distinct ones).

The product of its digits is 7680, while the sum is 34.

The square root of 258118216 is about 16066.0578861151. The cubic root of 258118216 is about 636.7068930417.

The spelling of 258118216 in words is "two hundred fifty-eight million, one hundred eighteen thousand, two hundred sixteen".