18106588226 has 32 divisors (see below), whose sum is σ = 28090782720. Its totient is φ = 8748343296.

The previous prime is 18106588211. The next prime is 18106588243. The reversal of 18106588226 is 62288560181.

It is a Harshad number since it is a multiple of its sum of digits (47).

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, 4219490 + ... + 4223778.

It is an arithmetic number, because the mean of its divisors is an integer number (877836960).

Almost surely, 2^18106588226 is an apocalyptic number.

18106588226 is a deficient number, since it is larger than the sum of its proper divisors (9984194494).

18106588226 is a wasteful number, since it uses less digits than its factorization.

18106588226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4898.

The product of its (nonzero) digits is 368640, while the sum is 47.

The spelling of 18106588226 in words is "eighteen billion, one hundred six million, five hundred eighty-eight thousand, two hundred twenty-six".