16166104445 has 8 divisors (see below), whose sum is σ = 19403150136. Its totient is φ = 12930333696.

The previous prime is 16166104441. The next prime is 16166104459. The reversal of 16166104445 is 54440166161.

It can be written as a sum of positive squares in 4 ways, for example, as 820593316 + 15345511129 = 28646^2 + 123877^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16166104445 - 2² = 16166104441 is a prime.

It is a super-2 number, since 2×16166104445² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 16166104399 and 16166104408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16166104441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290612 + ... + 341741.

It is an arithmetic number, because the mean of its divisors is an integer number (2425393767).

Almost surely, 2^16166104445 is an apocalyptic number.

It is an amenable number.

16166104445 is a deficient number, since it is larger than the sum of its proper divisors (3237045691).

16166104445 is an equidigital number, since it uses as much as digits as its factorization.

16166104445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637471.

The product of its (nonzero) digits is 69120, while the sum is 38.

The spelling of 16166104445 in words is "sixteen billion, one hundred sixty-six million, one hundred four thousand, four hundred forty-five".