16381792536 has 64 divisors (see below), whose sum is σ = 41930218080. Its totient is φ = 5331809280.

The previous prime is 16381792529. The next prime is 16381792561. The reversal of 16381792536 is 63529718361.

It is a super-2 number, since 2×16381792536² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159730 + ... + 241406.

Almost surely, 2^16381792536 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 16381792536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20965109040).

16381792536 is an abundant number, since it is smaller than the sum of its proper divisors (25548425544).

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

16381792536 is a wasteful number, since it uses less digits than its factorization.

16381792536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81884 (or 81880 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 51.

The spelling of 16381792536 in words is "sixteen billion, three hundred eighty-one million, seven hundred ninety-two thousand, five hundred thirty-six".