10220656620 has 96 divisors (see below), whose sum is σ = 29071224000. Its totient is φ = 2682649600.

The previous prime is 10220656583. The next prime is 10220656637. The reversal of 10220656620 is 2665602201.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 1043506 + ... + 1053254.

It is an arithmetic number, because the mean of its divisors is an integer number (302825250).

Almost surely, 2^10220656620 is an apocalyptic number.

10220656620 is a gapful number since it is divisible by the number (10) 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 10220656620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14535612000).

10220656620 is an abundant number, since it is smaller than the sum of its proper divisors (18850567380).

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

10220656620 is a wasteful number, since it uses less digits than its factorization.

10220656620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10035 (or 10033 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The spelling of 10220656620 in words is "ten billion, two hundred twenty million, six hundred fifty-six thousand, six hundred twenty".