16604105364 has 144 divisors (see below), whose sum is σ = 52433087616. Its totient is φ = 4304102400.

The previous prime is 16604105363. The next prime is 16604105387. The reversal of 16604105364 is 46350140661.

It is a happy number.

16604105364 is a `hidden beast` number, since 1 + 6 + 604 + 10 + 5 + 36 + 4 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16604105363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1438464 + ... + 1449960.

It is an arithmetic number, because the mean of its divisors is an integer number (364118664).

Almost surely, 2^16604105364 is an apocalyptic number.

16604105364 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16604105364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26216543808).

16604105364 is an abundant number, since it is smaller than the sum of its proper divisors (35828982252).

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

16604105364 is a wasteful number, since it uses less digits than its factorization.

16604105364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12046 (or 12041 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 16604105364 in words is "sixteen billion, six hundred four million, one hundred five thousand, three hundred sixty-four".