620255032020 has 144 divisors (see below), whose sum is σ = 2026502674560. Its totient is φ = 152652826368.

The previous prime is 620255032013. The next prime is 620255032039. The reversal of 620255032020 is 20230552026.

620255032020 is a `hidden beast` number, since 62 + 0 + 2 + 550 + 32 + 0 + 20 = 666.

It is a super-2 number, since 2×620255032020² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16845991 + ... + 16882769.

It is an arithmetic number, because the mean of its divisors is an integer number (14072935240).

Almost surely, 2^620255032020 is an apocalyptic number.

620255032020 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 620255032020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1013251337280).

620255032020 is an abundant number, since it is smaller than the sum of its proper divisors (1406247642540).

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

620255032020 is a wasteful number, since it uses less digits than its factorization.

620255032020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44014 (or 44009 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 620255032020 its reverse (20230552026), we get a palindrome (640485584046).

The spelling of 620255032020 in words is "six hundred twenty billion, two hundred fifty-five million, thirty-two thousand, twenty".