16369121677 has 8 divisors (see below), whose sum is σ = 16664471352. Its totient is φ = 16074643200.

The previous prime is 16369121669. The next prime is 16369121701. The reversal of 16369121677 is 77612196361.

It can be written as a sum of positive squares in 4 ways, for example, as 2943496516 + 13425625161 = 54254^2 + 115869^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16369121677 - 2³ = 16369121669 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 16369121677.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16369121647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179824 + ... + 255097.

It is an arithmetic number, because the mean of its divisors is an integer number (2083058919).

Almost surely, 2^16369121677 is an apocalyptic number.

It is an amenable number.

16369121677 is a deficient number, since it is larger than the sum of its proper divisors (295349675).

16369121677 is an equidigital number, since it uses as much as digits as its factorization.

16369121677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435599.

The product of its digits is 571536, while the sum is 49.

The spelling of 16369121677 in words is "sixteen billion, three hundred sixty-nine million, one hundred twenty-one thousand, six hundred seventy-seven".