16441668736 has 32 divisors (see below), whose sum is σ = 32769732780. Its totient is φ = 8217108480.

The previous prime is 16441668689. The next prime is 16441668757. The reversal of 16441668736 is 63786614461.

It can be written as a sum of positive squares in 2 ways, for example, as 14870339136 + 1571329600 = 121944^2 + 39640^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-3 number, since 3×16441668736³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 266056 + ... + 321976.

Almost surely, 2^16441668736 is an apocalyptic number.

16441668736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16441668736 is a deficient number, since it is larger than the sum of its proper divisors (16328064044).

16441668736 is an equidigital number, since it uses as much as digits as its factorization.

16441668736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58232 (or 58220 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 52.

The spelling of 16441668736 in words is "sixteen billion, four hundred forty-one million, six hundred sixty-eight thousand, seven hundred thirty-six".