872162666434 has 8 divisors (see below), whose sum is σ = 1308560854860. Its totient is φ = 435975714816.

The previous prime is 872162666363. The next prime is 872162666461. The reversal of 872162666434 is 434666261278.

It can be written as a sum of positive squares in 2 ways, for example, as 869375354409 + 2787312025 = 932403^2 + 52795^2 .

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, 52798879 + ... + 52815394.

Almost surely, 2^872162666434 is an apocalyptic number.

872162666434 is a deficient number, since it is larger than the sum of its proper divisors (436398188426).

872162666434 is a wasteful number, since it uses less digits than its factorization.

872162666434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105618404.

The product of its digits is 13934592, while the sum is 55.

The spelling of 872162666434 in words is "eight hundred seventy-two billion, one hundred sixty-two million, six hundred sixty-six thousand, four hundred thirty-four".