620804520000 has 840 divisors, whose sum is σ = 2653149095520. Its totient is φ = 141886080000.

The previous prime is 620804519989. The next prime is 620804520047. The reversal of 620804520000 is 25408026.

620804520000 is a `hidden beast` number, since 6 + 208 + 0 + 452 + 0 + 0 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (840).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 52914135 + ... + 52925865.

It is an arithmetic number, because the mean of its divisors is an integer number (3158510828).

Almost surely, 2^620804520000 is an apocalyptic number.

620804520000 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 620804520000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1326574547760).

620804520000 is an abundant number, since it is smaller than the sum of its proper divisors (2032344575520).

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

620804520000 is a wasteful number, since it uses less digits than its factorization.

620804520000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11786 (or 11748 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 620804520000 its reverse (25408026), we get a palindrome (620829928026).

The spelling of 620804520000 in words is "six hundred twenty billion, eight hundred four million, five hundred twenty thousand".