20152322020 has 24 divisors (see below), whose sum is σ = 43037164800. Its totient is φ = 7924302432.

The previous prime is 20152321979. The next prime is 20152322033. The reversal of 20152322020 is 2022325102.

It is a super-2 number, since 2×20152322020² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8537940 + ... + 8540299.

It is an arithmetic number, because the mean of its divisors is an integer number (1793215200).

Almost surely, 2^20152322020 is an apocalyptic number.

20152322020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20152322020 is an abundant number, since it is smaller than the sum of its proper divisors (22884842780).

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

20152322020 is a wasteful number, since it uses less digits than its factorization.

20152322020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17078307 (or 17078305 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

Adding to 20152322020 its reverse (2022325102), we get a palindrome (22174647122).

The spelling of 20152322020 in words is "twenty billion, one hundred fifty-two million, three hundred twenty-two thousand, twenty".