15600772000 has 144 divisors (see below), whose sum is σ = 42133835016. Its totient is φ = 5672832000.

The previous prime is 15600771983. The next prime is 15600772009. The reversal of 15600772000 is 27700651.

It can be written as a sum of positive squares in 4 ways, for example, as 6391682704 + 9209089296 = 79948^2 + 95964^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 15600772000.

It is not an unprimeable number, because it can be changed into a prime (15600772009) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 467884 + ... + 500116.

Almost surely, 2^15600772000 is an apocalyptic number.

15600772000 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 15600772000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21066917508).

15600772000 is an abundant number, since it is smaller than the sum of its proper divisors (26533063016).

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

15600772000 is a wasteful number, since it uses less digits than its factorization.

15600772000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32280 (or 32251 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 28.

The spelling of 15600772000 in words is "fifteen billion, six hundred million, seven hundred seventy-two thousand".