641462330556 has 72 divisors (see below), whose sum is σ = 1717761309264. Its totient is φ = 201136857600.

The previous prime is 641462330543. The next prime is 641462330591. The reversal of 641462330556 is 655033264146.

641462330556 is a `hidden beast` number, since 6 + 4 + 1 + 4 + 62 + 3 + 30 + 556 = 666.

It is a super-2 number, since 2×641462330556² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 887731 + ... + 1439093.

It is an arithmetic number, because the mean of its divisors is an integer number (23857795962).

Almost surely, 2^641462330556 is an apocalyptic number.

It is an amenable number.

641462330556 is an abundant number, since it is smaller than the sum of its proper divisors (1076298978708).

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

641462330556 is a wasteful number, since it uses less digits than its factorization.

641462330556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553291 (or 553286 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 45.

The spelling of 641462330556 in words is "six hundred forty-one billion, four hundred sixty-two million, three hundred thirty thousand, five hundred fifty-six".