20210622320 has 120 divisors (see below), whose sum is σ = 55411056144. Its totient is φ = 6834336768.

The previous prime is 20210622317. The next prime is 20210622337. The reversal of 20210622320 is 2322601202.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 20210622292 and 20210622301.

It is a congruent number.

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, 250847 + ... + 321473.

Almost surely, 2^20210622320 is an apocalyptic number.

20210622320 is a gapful number since it is divisible by the number (20) 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 20210622320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27705528072).

20210622320 is an abundant number, since it is smaller than the sum of its proper divisors (35200433824).

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

20210622320 is a wasteful number, since it uses less digits than its factorization.

20210622320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70727 (or 70714 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The spelling of 20210622320 in words is "twenty billion, two hundred ten million, six hundred twenty-two thousand, three hundred twenty".