16940869241 has 4 divisors (see below), whose sum is σ = 17054566500. Its totient is φ = 16827171984.

The previous prime is 16940869207. The next prime is 16940869333. The reversal of 16940869241 is 14296804961.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4537369600 + 12403499641 = 67360^2 + 111371^2 .

It is a cyclic number.

It is not a de Polignac number, because 16940869241 - 2¹⁸ = 16940607097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16940869241.

It is not an unprimeable number, because it can be changed into a prime (16940869441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56848406 + ... + 56848703.

It is an arithmetic number, because the mean of its divisors is an integer number (4263641625).

Almost surely, 2^16940869241 is an apocalyptic number.

It is an amenable number.

16940869241 is a deficient number, since it is larger than the sum of its proper divisors (113697259).

16940869241 is a wasteful number, since it uses less digits than its factorization.

16940869241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113697258.

The product of its (nonzero) digits is 746496, while the sum is 50.

The spelling of 16940869241 in words is "sixteen billion, nine hundred forty million, eight hundred sixty-nine thousand, two hundred forty-one".