621632340164 has 24 divisors (see below), whose sum is σ = 1186791916800. Its totient is φ = 282550805280.

The previous prime is 621632340163. The next prime is 621632340223. The reversal of 621632340164 is 461043236126.

It is not an unprimeable number, because it can be changed into a prime (621632340163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1211582 + ... + 1646570.

It is an arithmetic number, because the mean of its divisors is an integer number (49449663200).

Almost surely, 2^621632340164 is an apocalyptic number.

It is an amenable number.

621632340164 is a deficient number, since it is larger than the sum of its proper divisors (565159576636).

621632340164 is a wasteful number, since it uses less digits than its factorization.

621632340164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467483 (or 467481 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 38.

The spelling of 621632340164 in words is "six hundred twenty-one billion, six hundred thirty-two million, three hundred forty thousand, one hundred sixty-four".