16441947594 has 64 divisors (see below), whose sum is σ = 37638057600. Its totient is φ = 5316482304.

The previous prime is 16441947581. The next prime is 16441947659. The reversal of 16441947594 is 49574914461.

It is a happy number.

16441947594 is a `hidden beast` number, since 1 + 6 + 4 + 4 + 1 + 9 + 47 + 594 = 666.

It is a super-3 number, since 3×16441947594³ (a number of 32 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 16441947594.

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, 661117 + ... + 685535.

It is an arithmetic number, because the mean of its divisors is an integer number (588094650).

Almost surely, 2^16441947594 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16441947594, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18819028800).

16441947594 is an abundant number, since it is smaller than the sum of its proper divisors (21196110006).

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

16441947594 is a wasteful number, since it uses less digits than its factorization.

16441947594 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24804 (or 24798 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 54.

The spelling of 16441947594 in words is "sixteen billion, four hundred forty-one million, nine hundred forty-seven thousand, five hundred ninety-four".