66222522161226 has 48 divisors (see below), whose sum is σ = 143549843116680. Its totient is φ = 22063758013440.

The previous prime is 66222522161221. The next prime is 66222522161233. The reversal of 66222522161226 is 62216122522266.

66222522161226 is a `hidden beast` number, since 6 + 6 + 2 + 2 + 2 + 5 + 2 + 2 + 1 + 612 + 26 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 66213779724225 + 8742437001 = 8137185^2 + 93501^2 .

It is not an unprimeable number, because it can be changed into a prime (66222522161221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 904778640 + ... + 904851828.

Almost surely, 2^{66222522161226} is an apocalyptic number.

66222522161226 is an abundant number, since it is smaller than the sum of its proper divisors (77327320955454).

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

66222522161226 is a wasteful number, since it uses less digits than its factorization.

66222522161226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96231 (or 96228 counting only the distinct ones).

The product of its digits is 829440, while the sum is 45.

The spelling of 66222522161226 in words is "sixty-six trillion, two hundred twenty-two billion, five hundred twenty-two million, one hundred sixty-one thousand, two hundred twenty-six".