20215015332 has 48 divisors (see below), whose sum is σ = 47530627200. Its totient is φ = 6686724352.

The previous prime is 20215015309. The next prime is 20215015441. The reversal of 20215015332 is 23351051202.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1228294 + ... + 1244642.

It is an arithmetic number, because the mean of its divisors is an integer number (990221400).

Almost surely, 2^20215015332 is an apocalyptic number.

It is an amenable number.

20215015332 is an abundant number, since it is smaller than the sum of its proper divisors (27315611868).

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

20215015332 is a wasteful number, since it uses less digits than its factorization.

20215015332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17140 (or 17138 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

Adding to 20215015332 its reverse (23351051202), we get a palindrome (43566066534).

The spelling of 20215015332 in words is "twenty billion, two hundred fifteen million, fifteen thousand, three hundred thirty-two".