620505720352 has 144 divisors (see below), whose sum is σ = 1502468079840. Its totient is φ = 250822075392.

The previous prime is 620505720349. The next prime is 620505720421. The reversal of 620505720352 is 253027505026.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6716908 + ... + 6808660.

It is an arithmetic number, because the mean of its divisors is an integer number (10433806110).

Almost surely, 2^620505720352 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 620505720352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (751234039920).

620505720352 is an abundant number, since it is smaller than the sum of its proper divisors (881962359488).

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

620505720352 is a wasteful number, since it uses less digits than its factorization.

620505720352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92023 (or 92008 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 37.

The spelling of 620505720352 in words is "six hundred twenty billion, five hundred five million, seven hundred twenty thousand, three hundred fifty-two".