442165644544226 has 8 divisors (see below), whose sum is σ = 663321826921644. Its totient is φ = 221058368903680.

The previous prime is 442165644544163. The next prime is 442165644544231. The reversal of 442165644544226 is 622445446561244.

It can be written as a sum of positive squares in 2 ways, for example, as 429291505861201 + 12874138683025 = 20719351^2 + 3588055^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12226661615 + ... + 12226697778.

Almost surely, 2^{442165644544226} is an apocalyptic number.

442165644544226 is a deficient number, since it is larger than the sum of its proper divisors (221156182377418).

442165644544226 is a wasteful number, since it uses less digits than its factorization.

442165644544226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24453368436.

The product of its digits is 176947200, while the sum is 59.

The spelling of 442165644544226 in words is "four hundred forty-two trillion, one hundred sixty-five billion, six hundred forty-four million, five hundred forty-four thousand, two hundred twenty-six".