15880023000 has 512 divisors, whose sum is σ = 60349536000. Its totient is φ = 3844915200.

The previous prime is 15880022999. The next prime is 15880023013. The reversal of 15880023000 is 32008851.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 13310404 + ... + 13311596.

Almost surely, 2^15880023000 is an apocalyptic number.

15880023000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15880023000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30174768000).

15880023000 is an abundant number, since it is smaller than the sum of its proper divisors (44469513000).

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

15880023000 is a wasteful number, since it uses less digits than its factorization.

15880023000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1269 (or 1249 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The spelling of 15880023000 in words is "fifteen billion, eight hundred eighty million, twenty-three thousand".