666436161262 has 8 divisors (see below), whose sum is σ = 999680169600. Its totient is φ = 333209438064.

The previous prime is 666436161257. The next prime is 666436161299. The reversal of 666436161262 is 262161634666.

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

It is a congruent number.

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, 4224462 + ... + 4379377.

It is an arithmetic number, because the mean of its divisors is an integer number (124960021200).

Almost surely, 2^666436161262 is an apocalyptic number.

666436161262 is a deficient number, since it is larger than the sum of its proper divisors (333244008338).

666436161262 is a wasteful number, since it uses less digits than its factorization.

666436161262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8642570.

The product of its digits is 2239488, while the sum is 49.

The spelling of 666436161262 in words is "six hundred sixty-six billion, four hundred thirty-six million, one hundred sixty-one thousand, two hundred sixty-two".