664362344141634 has 16 divisors (see below), whose sum is σ = 1334683094959872. Its totient is φ = 220461046934448.

The previous prime is 664362344141621. The next prime is 664362344141689. The reversal of 664362344141634 is 436141443263466.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248266943409 + ... + 248266946084.

It is an arithmetic number, because the mean of its divisors is an integer number (83417693434992).

Almost surely, 2^{664362344141634} is an apocalyptic number.

664362344141634 is an abundant number, since it is smaller than the sum of its proper divisors (670320750818238).

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

664362344141634 is a wasteful number, since it uses less digits than its factorization.

664362344141634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496533889721.

The product of its digits is 71663616, while the sum is 57.

The spelling of 664362344141634 in words is "six hundred sixty-four trillion, three hundred sixty-two billion, three hundred forty-four million, one hundred forty-one thousand, six hundred thirty-four".