16442674264777 has 2 divisors, whose sum is σ = 16442674264778. Its totient is φ = 16442674264776.

The previous prime is 16442674264759. The next prime is 16442674264811. The reversal of 16442674264777 is 77746247624461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14053658890041 + 2389015374736 = 3748821^2 + 1545644^2 .

It is a cyclic number.

It is not a de Polignac number, because 16442674264777 - 2²⁷ = 16442540047049 is a prime.

It is a super-3 number, since 3×16442674264777³ (a number of 41 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (16442674264727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8221337132388 + 8221337132389.

It is an arithmetic number, because the mean of its divisors is an integer number (8221337132389).

Almost surely, 2^{16442674264777} is an apocalyptic number.

It is an amenable number.

16442674264777 is a deficient number, since it is larger than the sum of its proper divisors (1).

16442674264777 is an equidigital number, since it uses as much as digits as its factorization.

16442674264777 is an evil number, because the sum of its binary digits is even.

The product of its digits is 531062784, while the sum is 67.

The spelling of 16442674264777 in words is "sixteen trillion, four hundred forty-two billion, six hundred seventy-four million, two hundred sixty-four thousand, seven hundred seventy-seven".