16041066641 has 12 divisors (see below), whose sum is σ = 16765791900. Its totient is φ = 15345747648.

The previous prime is 16041066631. The next prime is 16041066649. The reversal of 16041066641 is 14666014061.

It can be written as a sum of positive squares in 6 ways, for example, as 1573788241 + 14467278400 = 39671^2 + 120280^2 .

It is not a de Polignac number, because 16041066641 - 2²⁶ = 15973957777 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16041066649) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4175 + ... + 179163.

It is an arithmetic number, because the mean of its divisors is an integer number (1397149325).

Almost surely, 2^16041066641 is an apocalyptic number.

It is an amenable number.

16041066641 is a deficient number, since it is larger than the sum of its proper divisors (724725259).

16041066641 is a wasteful number, since it uses less digits than its factorization.

16041066641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175156 (or 175127 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The spelling of 16041066641 in words is "sixteen billion, forty-one million, sixty-six thousand, six hundred forty-one".