16441320164 has 12 divisors (see below), whose sum is σ = 29315184444. Its totient is φ = 8065553184.

The previous prime is 16441320149. The next prime is 16441320187. The reversal of 16441320164 is 46102314461.

It can be written as a sum of positive squares in 2 ways, for example, as 10389724900 + 6051595264 = 101930^2 + 77792^2 .

It is a super-3 number, since 3×16441320164³ (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16441320164.

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, 38776487 + ... + 38776910.

It is an arithmetic number, because the mean of its divisors is an integer number (2442932037).

Almost surely, 2^16441320164 is an apocalyptic number.

It is an amenable number.

16441320164 is a deficient number, since it is larger than the sum of its proper divisors (12873864280).

16441320164 is a wasteful number, since it uses less digits than its factorization.

16441320164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77553454 (or 77553452 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The spelling of 16441320164 in words is "sixteen billion, four hundred forty-one million, three hundred twenty thousand, one hundred sixty-four".