16492239641 has 2 divisors, whose sum is σ = 16492239642. Its totient is φ = 16492239640.

The previous prime is 16492239623. The next prime is 16492239671. The reversal of 16492239641 is 14693229461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13777829641 + 2714410000 = 117379^2 + 52100^2 .

It is an emirp because it is prime and its reverse (14693229461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16492239641 - 2¹⁰ = 16492238617 is a prime.

It is not a weakly prime, because it can be changed into another prime (16492239671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8246119820 + 8246119821.

It is an arithmetic number, because the mean of its divisors is an integer number (8246119821).

Almost surely, 2^16492239641 is an apocalyptic number.

It is an amenable number.

16492239641 is a deficient number, since it is larger than the sum of its proper divisors (1).

16492239641 is an equidigital number, since it uses as much as digits as its factorization.

16492239641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 559872, while the sum is 47.

The spelling of 16492239641 in words is "sixteen billion, four hundred ninety-two million, two hundred thirty-nine thousand, six hundred forty-one".