16109532504 has 128 divisors (see below), whose sum is σ = 48870259200. Its totient is φ = 4886904960.

The previous prime is 16109532493. The next prime is 16109532521. The reversal of 16109532504 is 40523590161.

16109532504 is a `hidden beast` number, since 1 + 61 + 0 + 95 + 3 + 2 + 504 = 666.

16109532504 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 158967 + ... + 239769.

It is an arithmetic number, because the mean of its divisors is an integer number (381798900).

Almost surely, 2^16109532504 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 16109532504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24435129600).

16109532504 is an abundant number, since it is smaller than the sum of its proper divisors (32760726696).

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

16109532504 is a wasteful number, since it uses less digits than its factorization.

16109532504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80902 (or 80892 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The spelling of 16109532504 in words is "sixteen billion, one hundred nine million, five hundred thirty-two thousand, five hundred four".