15650009872 has 80 divisors (see below), whose sum is σ = 36752147712. Its totient is φ = 6302269440.

The previous prime is 15650009867. The next prime is 15650009873. The reversal of 15650009872 is 27890005651.

It is not an unprimeable number, because it can be changed into a prime (15650009873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1214053 + ... + 1226875.

Almost surely, 2^15650009872 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 15650009872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18376073856).

15650009872 is an abundant number, since it is smaller than the sum of its proper divisors (21102137840).

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

15650009872 is a wasteful number, since it uses less digits than its factorization.

15650009872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13496 (or 13490 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 43.

The spelling of 15650009872 in words is "fifteen billion, six hundred fifty million, nine thousand, eight hundred seventy-two".