621606466233624 has 64 divisors (see below), whose sum is σ = 1563010633576800. Its totient is φ = 206002910969856.

The previous prime is 621606466233607. The next prime is 621606466233659. The reversal of 621606466233624 is 426332664606126.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 642050742 + ... + 643018170.

Almost surely, 2^{621606466233624} is an apocalyptic number.

It is an amenable number.

621606466233624 is an abundant number, since it is smaller than the sum of its proper divisors (941404167343176).

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

621606466233624 is a wasteful number, since it uses less digits than its factorization.

621606466233624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122364 (or 1122360 counting only the distinct ones).

The product of its (nonzero) digits is 53747712, while the sum is 57.

The spelling of 621606466233624 in words is "six hundred twenty-one trillion, six hundred six billion, four hundred sixty-six million, two hundred thirty-three thousand, six hundred twenty-four".