20015253330 has 32 divisors (see below), whose sum is σ = 48342585024. Its totient is φ = 5303403456.

The previous prime is 20015253329. The next prime is 20015253347. The reversal of 20015253330 is 3335251002.

It is a happy number.

It is a super-2 number, since 2×20015253330² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20015253330.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2120052 + ... + 2129471.

It is an arithmetic number, because the mean of its divisors is an integer number (1510705782).

Almost surely, 2^20015253330 is an apocalyptic number.

20015253330 is an abundant number, since it is smaller than the sum of its proper divisors (28327331694).

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

20015253330 is a wasteful number, since it uses less digits than its factorization.

20015253330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4249690.

The product of its (nonzero) digits is 2700, while the sum is 24.

The spelling of 20015253330 in words is "twenty billion, fifteen million, two hundred fifty-three thousand, three hundred thirty".