646222600671 has 32 divisors (see below), whose sum is σ = 873561162240. Its totient is φ = 424885296000.

The previous prime is 646222600649. The next prime is 646222600691. The reversal of 646222600671 is 176006222646.

It is not a de Polignac number, because 646222600671 - 2³⁰ = 645148858847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (646222600691) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 156354721 + ... + 156358853.

It is an arithmetic number, because the mean of its divisors is an integer number (27298786320).

Almost surely, 2^646222600671 is an apocalyptic number.

646222600671 is a deficient number, since it is larger than the sum of its proper divisors (227338561569).

646222600671 is a wasteful number, since it uses less digits than its factorization.

646222600671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6127.

The product of its (nonzero) digits is 290304, while the sum is 42.

The spelling of 646222600671 in words is "six hundred forty-six billion, two hundred twenty-two million, six hundred thousand, six hundred seventy-one".