15530332012 has 48 divisors (see below), whose sum is σ = 30855831552. Its totient is φ = 6789003840.

The previous prime is 15530332009. The next prime is 15530332073. The reversal of 15530332012 is 21023303551.

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, 26728 + ... + 178255.

It is an arithmetic number, because the mean of its divisors is an integer number (642829824).

Almost surely, 2^15530332012 is an apocalyptic number.

It is an amenable number.

15530332012 is a deficient number, since it is larger than the sum of its proper divisors (15325499540).

15530332012 is a wasteful number, since it uses less digits than its factorization.

15530332012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205078 (or 205076 counting only the distinct ones).

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

Adding to 15530332012 its reverse (21023303551), we get a palindrome (36553635563).

The spelling of 15530332012 in words is "fifteen billion, five hundred thirty million, three hundred thirty-two thousand, twelve".