20215339320 has 384 divisors, whose sum is σ = 69670379520. Its totient is φ = 4683571200.

The previous prime is 20215339297. The next prime is 20215339327. The reversal of 20215339320 is 2393351202.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20215339327) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 43661409 + ... + 43661871.

It is an arithmetic number, because the mean of its divisors is an integer number (181433280).

Almost surely, 2^20215339320 is an apocalyptic number.

20215339320 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 20215339320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34835189760).

20215339320 is an abundant number, since it is smaller than the sum of its proper divisors (49455040200).

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

20215339320 is a wasteful number, since it uses less digits than its factorization.

20215339320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627 (or 612 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 30.

The spelling of 20215339320 in words is "twenty billion, two hundred fifteen million, three hundred thirty-nine thousand, three hundred twenty".