15532330020 has 48 divisors (see below), whose sum is σ = 43559553408. Its totient is φ = 4135380480.

The previous prime is 15532330003. The next prime is 15532330027. The reversal of 15532330020 is 2003323551.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (15532330027) 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, 167269 + ... + 242988.

It is an arithmetic number, because the mean of its divisors is an integer number (907490696).

Almost surely, 2^15532330020 is an apocalyptic number.

15532330020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15532330020 is an abundant number, since it is smaller than the sum of its proper divisors (28027223388).

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

15532330020 is a wasteful number, since it uses less digits than its factorization.

15532330020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410900 (or 410898 counting only the distinct ones).

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

Adding to 15532330020 its reverse (2003323551), we get a palindrome (17535653571).

The spelling of 15532330020 in words is "fifteen billion, five hundred thirty-two million, three hundred thirty thousand, twenty".