18150970266 has 128 divisors (see below), whose sum is σ = 47450188800. Its totient is φ = 5070444480.

The previous prime is 18150970259. The next prime is 18150970289. The reversal of 18150970266 is 66207905181.

18150970266 is a `hidden beast` number, since 1 + 81 + 509 + 7 + 0 + 2 + 66 = 666.

It is a super-2 number, since 2×18150970266² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9721065 + ... + 9722931.

It is an arithmetic number, because the mean of its divisors is an integer number (370704600).

Almost surely, 2^18150970266 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18150970266, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23725094400).

18150970266 is an abundant number, since it is smaller than the sum of its proper divisors (29299218534).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18150970266 is a wasteful number, since it uses less digits than its factorization.

18150970266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3161 (or 3155 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The spelling of 18150970266 in words is "eighteen billion, one hundred fifty million, nine hundred seventy thousand, two hundred sixty-six".