620622020052520 has 128 divisors (see below), whose sum is σ = 1460232600537600. Its totient is φ = 236947421297664.

The previous prime is 620622020052443. The next prime is 620622020052613. The reversal of 620622020052520 is 25250020226026.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 895233949 + ... + 895926931.

It is an arithmetic number, because the mean of its divisors is an integer number (11408067191700).

Almost surely, 2^{620622020052520} 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 620622020052520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (730116300268800).

620622020052520 is an abundant number, since it is smaller than the sum of its proper divisors (839610580485080).

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

620622020052520 is a wasteful number, since it uses less digits than its factorization.

620622020052520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695099 (or 695095 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 620622020052520 its reverse (25250020226026), we get a palindrome (645872040278546).

The spelling of 620622020052520 in words is "six hundred twenty trillion, six hundred twenty-two billion, twenty million, fifty-two thousand, five hundred twenty".