15532331020 has 48 divisors (see below), whose sum is σ = 34056142848. Its totient is φ = 5939299520.

The previous prime is 15532330999. The next prime is 15532331029. The reversal of 15532331020 is 2013323551.

It is not an unprimeable number, because it can be changed into a prime (15532331029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 851637 + ... + 869683.

It is an arithmetic number, because the mean of its divisors is an integer number (709502976).

Almost surely, 2^15532331020 is an apocalyptic number.

15532331020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15532331020 is an abundant number, since it is smaller than the sum of its proper divisors (18523811828).

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

15532331020 is a wasteful number, since it uses less digits than its factorization.

15532331020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19950 (or 19948 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 25.

Adding to 15532331020 its reverse (2013323551), we get a palindrome (17545654571).

The spelling of 15532331020 in words is "fifteen billion, five hundred thirty-two million, three hundred thirty-one thousand, twenty".