16553807037769 has 9 divisors (see below), whose sum is σ = 16574668767853. Its totient is φ = 16532971547692.

The previous prime is 16553807037743. The next prime is 16553807037787. The reversal of 16553807037769 is 96773070835561.

The square root of 16553807037769 is 4068637.

It is a perfect power (a square), and thus also a powerful number.

It is a de Polignac number, because none of the positive numbers 2^k-16553807037769 is a prime.

It is a super-2 number, since 2×16553807037769² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16553807037709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3999468102 + ... + 3999472240.

Almost surely, 2^{16553807037769} is an apocalyptic number.

16553807037769 is the 4068637-th square number.

16553807037769 is the 2034319-th centered octagonal number.

It is an amenable number.

16553807037769 is a deficient number, since it is larger than the sum of its proper divisors (20861730084).

16553807037769 is an frugal number, since it uses more digits than its factorization.

16553807037769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10244 (or 5122 counting only the distinct ones).

The product of its (nonzero) digits is 200037600, while the sum is 67.

The spelling of 16553807037769 in words is "sixteen trillion, five hundred fifty-three billion, eight hundred seven million, thirty-seven thousand, seven hundred sixty-nine".