16623073769 has 2 divisors, whose sum is σ = 16623073770. Its totient is φ = 16623073768.

The previous prime is 16623073757. The next prime is 16623073811. The reversal of 16623073769 is 96737032661.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10056078400 + 6566995369 = 100280^2 + 81037^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16623073769 is a prime.

It is a super-2 number, since 2×16623073769² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16623073069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8311536884 + 8311536885.

It is an arithmetic number, because the mean of its divisors is an integer number (8311536885).

Almost surely, 2^16623073769 is an apocalyptic number.

It is an amenable number.

16623073769 is a deficient number, since it is larger than the sum of its proper divisors (1).

16623073769 is an equidigital number, since it uses as much as digits as its factorization.

16623073769 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1714608, while the sum is 50.

The spelling of 16623073769 in words is "sixteen billion, six hundred twenty-three million, seventy-three thousand, seven hundred sixty-nine".