621278048160 has 2880 divisors, whose sum is σ = 3043384565760. Its totient is φ = 117573120000.

The previous prime is 621278048147. The next prime is 621278048177. The reversal of 621278048160 is 61840872126.

621278048160 is a `hidden beast` number, since 621 + 2 + 7 + 8 + 0 + 4 + 8 + 16 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 479 ways as a sum of consecutive naturals, for example, 4114424085 + ... + 4114424235.

It is an arithmetic number, because the mean of its divisors is an integer number (1056730752).

Almost surely, 2^621278048160 is an apocalyptic number.

621278048160 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 621278048160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1521692282880).

621278048160 is an abundant number, since it is smaller than the sum of its proper divisors (2422106517600).

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

621278048160 is a wasteful number, since it uses less digits than its factorization.

621278048160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253 (or 229 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The spelling of 621278048160 in words is "six hundred twenty-one billion, two hundred seventy-eight million, forty-eight thousand, one hundred sixty".