16253611008 has 176 divisors, whose sum is σ = 44834605824. Its totient is φ = 5231001600.

The previous prime is 16253610991. The next prime is 16253611013. The reversal of 16253611008 is 80011635261.

It is a self number, because there is not a number n which added to its sum of digits gives 16253611008.

It is an unprimeable number.

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, 17162791 + ... + 17163737.

Almost surely, 2^16253611008 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 16253611008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22417302912).

16253611008 is an abundant number, since it is smaller than the sum of its proper divisors (28580994816).

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

16253611008 is a wasteful number, since it uses less digits than its factorization.

16253611008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1158 (or 1140 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The spelling of 16253611008 in words is "sixteen billion, two hundred fifty-three million, six hundred eleven thousand, eight".