15568140000 has 480 divisors, whose sum is σ = 59100281856. Its totient is φ = 3513600000.

The previous prime is 15568139959. The next prime is 15568140011. The reversal of 15568140000 is 4186551.

It is a tau number, because it is divible by the number of its divisors (480).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a self number, because there is not a number n which added to its sum of digits gives 15568140000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 42419817 + ... + 42420183.

Almost surely, 2^15568140000 is an apocalyptic number.

15568140000 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 15568140000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29550140928).

15568140000 is an abundant number, since it is smaller than the sum of its proper divisors (43532141856).

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

15568140000 is a wasteful number, since it uses less digits than its factorization.

15568140000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508 (or 485 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 30.

The spelling of 15568140000 in words is "fifteen billion, five hundred sixty-eight million, one hundred forty thousand".