16356995512 has 128 divisors (see below), whose sum is σ = 37453752000. Its totient is φ = 6594416640.

The previous prime is 16356995509. The next prime is 16356995531. The reversal of 16356995512 is 21559965361.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a self number, because there is not a number n which added to its sum of digits gives 16356995512.

It is a congruent number.

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, 7596228 + ... + 7598380.

Almost surely, 2^16356995512 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 16356995512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18726876000).

16356995512 is an abundant number, since it is smaller than the sum of its proper divisors (21096756488).

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

16356995512 is a wasteful number, since it uses less digits than its factorization.

16356995512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2441 (or 2437 counting only the distinct ones).

The product of its digits is 2187000, while the sum is 52.

It can be divided in two parts, 163569 and 95512, that added together give a square (259081 = 509²).

The spelling of 16356995512 in words is "sixteen billion, three hundred fifty-six million, nine hundred ninety-five thousand, five hundred twelve".