15530332023 has 6 divisors (see below), whose sum is σ = 22432701824. Its totient is φ = 10353554676.

The previous prime is 15530332009. The next prime is 15530332073. The reversal of 15530332023 is 32023303551.

15530332023 is a `hidden beast` number, since 15 + 5 + 303 + 320 + 23 = 666.

It is not a de Polignac number, because 15530332023 - 2⁴ = 15530332007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15530332003) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 862796215 + ... + 862796232.

Almost surely, 2^15530332023 is an apocalyptic number.

15530332023 is a deficient number, since it is larger than the sum of its proper divisors (6902369801).

15530332023 is a wasteful number, since it uses less digits than its factorization.

15530332023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1725592453 (or 1725592450 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 27.

Adding to 15530332023 its reverse (32023303551), we get a palindrome (47553635574).

The spelling of 15530332023 in words is "fifteen billion, five hundred thirty million, three hundred thirty-two thousand, twenty-three".