16253521312 has 48 divisors (see below), whose sum is σ = 36833590080. Its totient is φ = 6915667968.

The previous prime is 16253521261. The next prime is 16253521327. The reversal of 16253521312 is 21312535261.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229873 + ... + 292144.

It is an arithmetic number, because the mean of its divisors is an integer number (767366460).

Almost surely, 2^16253521312 is an apocalyptic number.

It is an amenable number.

16253521312 is an abundant number, since it is smaller than the sum of its proper divisors (20580068768).

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

16253521312 is a wasteful number, since it uses less digits than its factorization.

16253521312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522173 (or 522165 counting only the distinct ones).

The product of its digits is 10800, while the sum is 31.

The spelling of 16253521312 in words is "sixteen billion, two hundred fifty-three million, five hundred twenty-one thousand, three hundred twelve".