16365435504 has 160 divisors (see below), whose sum is σ = 46949995008. Its totient is φ = 4870656000.

The previous prime is 16365435497. The next prime is 16365435521. The reversal of 16365435504 is 40553456361.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

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, 10830109 + ... + 10831619.

Almost surely, 2^16365435504 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 16365435504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23474997504).

16365435504 is an abundant number, since it is smaller than the sum of its proper divisors (30584559504).

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

16365435504 is a wasteful number, since it uses less digits than its factorization.

16365435504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1887 (or 1881 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 42.

The spelling of 16365435504 in words is "sixteen billion, three hundred sixty-five million, four hundred thirty-five thousand, five hundred four".