20150216112 has 160 divisors (see below), whose sum is σ = 56940452800. Its totient is φ = 6139680768.

The previous prime is 20150216083. The next prime is 20150216173. The reversal of 20150216112 is 21161205102.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11493828 + ... + 11495580.

It is an arithmetic number, because the mean of its divisors is an integer number (355877830).

Almost surely, 2^20150216112 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 20150216112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28470226400).

20150216112 is an abundant number, since it is smaller than the sum of its proper divisors (36790236688).

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

20150216112 is a wasteful number, since it uses less digits than its factorization.

20150216112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1912 (or 1880 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 21.

The spelling of 20150216112 in words is "twenty billion, one hundred fifty million, two hundred sixteen thousand, one hundred twelve".