621699360480 has 384 divisors, whose sum is σ = 2450339942400. Its totient is φ = 145852876800.

The previous prime is 621699360433. The next prime is 621699360521. The reversal of 621699360480 is 84063996126.

621699360480 is a `hidden beast` number, since 6 + 2 + 16 + 9 + 93 + 60 + 480 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1262106 + ... + 1684134.

It is an arithmetic number, because the mean of its divisors is an integer number (6381093600).

Almost surely, 2^621699360480 is an apocalyptic number.

621699360480 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 621699360480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1225169971200).

621699360480 is an abundant number, since it is smaller than the sum of its proper divisors (1828640581920).

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

621699360480 is a wasteful number, since it uses less digits than its factorization.

621699360480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422095 (or 422081 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 54.

The spelling of 621699360480 in words is "six hundred twenty-one billion, six hundred ninety-nine million, three hundred sixty thousand, four hundred eighty".