15660123000 has 128 divisors (see below), whose sum is σ = 51431328000. Its totient is φ = 3956227200.

The previous prime is 15660122971. The next prime is 15660123013. The reversal of 15660123000 is 32106651.

15660123000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80370 + ... + 194369.

It is an arithmetic number, because the mean of its divisors is an integer number (401807250).

Almost surely, 2^15660123000 is an apocalyptic number.

15660123000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15660123000 is an abundant number, since it is smaller than the sum of its proper divisors (35771205000).

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

15660123000 is a wasteful number, since it uses less digits than its factorization.

15660123000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274782 (or 274768 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

Adding to 15660123000 its reverse (32106651), we get a palindrome (15692229651).

The spelling of 15660123000 in words is "fifteen billion, six hundred sixty million, one hundred twenty-three thousand".