9918665146 has 16 divisors (see below), whose sum is σ = 16024226400. Its totient is φ = 4577340528.

The previous prime is 9918665129. The next prime is 9918665161. The reversal of 9918665146 is 6415668199.

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, 329265 + ... + 358123.

It is an arithmetic number, because the mean of its divisors is an integer number (1001514150).

Almost surely, 2^9918665146 is an apocalyptic number.

9918665146 is a deficient number, since it is larger than the sum of its proper divisors (6105561254).

9918665146 is a wasteful number, since it uses less digits than its factorization.

9918665146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42093.

The product of its digits is 2799360, while the sum is 55.

The square root of 9918665146 is about 99592.4954301277. The cubic root of 9918665146 is about 2148.5777610999.

The spelling of 9918665146 in words is "nine billion, nine hundred eighteen million, six hundred sixty-five thousand, one hundred forty-six".