15580000836 has 96 divisors (see below), whose sum is σ = 42804720000. Its totient is φ = 4886884224.

The previous prime is 15580000831. The next prime is 15580000853. The reversal of 15580000836 is 63800008551.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 15580000836.

It is not an unprimeable number, because it can be changed into a prime (15580000831) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 280270 + ... + 331226.

It is an arithmetic number, because the mean of its divisors is an integer number (445882500).

Almost surely, 2^15580000836 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15580000836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21402360000).

15580000836 is an abundant number, since it is smaller than the sum of its proper divisors (27224719164).

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

15580000836 is a wasteful number, since it uses less digits than its factorization.

15580000836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51138 (or 51130 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The spelling of 15580000836 in words is "fifteen billion, five hundred eighty million, eight hundred thirty-six", and thus it is an aban number.