15045322020 has 96 divisors (see below), whose sum is σ = 42683663232. Its totient is φ = 3959175168.

The previous prime is 15045322009. The next prime is 15045322027. The reversal of 15045322020 is 2022354051.

It is not an unprimeable number, because it can be changed into a prime (15045322027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8031804 + ... + 8033676.

It is an arithmetic number, because the mean of its divisors is an integer number (444621492).

Almost surely, 2^15045322020 is an apocalyptic number.

15045322020 is a gapful number since it is divisible by the number (10) 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 15045322020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21341831616).

15045322020 is an abundant number, since it is smaller than the sum of its proper divisors (27638341212).

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

15045322020 is a wasteful number, since it uses less digits than its factorization.

15045322020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3581 (or 3579 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

Adding to 15045322020 its reverse (2022354051), we get a palindrome (17067676071).

The spelling of 15045322020 in words is "fifteen billion, forty-five million, three hundred twenty-two thousand, twenty".