15951600000 has 768 divisors, whose sum is σ = 67570675200. Its totient is φ = 3628800000.

The previous prime is 15951599981. The next prime is 15951600011. The reversal of 15951600000 is 615951.

15951600000 is a `hidden beast` number, since 1 + 5 + 9 + 51 + 600 + 0 + 0 + 0 = 666.

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 polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 75599895 + ... + 75600105.

It is an arithmetic number, because the mean of its divisors is an integer number (87982650).

Almost surely, 2^15951600000 is an apocalyptic number.

15951600000 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 15951600000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33785337600).

15951600000 is an abundant number, since it is smaller than the sum of its proper divisors (51619075200).

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

15951600000 is an frugal number, since it uses more digits than its factorization.

15951600000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266 (or 228 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 27.

The spelling of 15951600000 in words is "fifteen billion, nine hundred fifty-one million, six hundred thousand".