16336772663669 has 4 divisors (see below), whose sum is σ = 16481345873196. Its totient is φ = 16192199454144.

The previous prime is 16336772663551. The next prime is 16336772663689. The reversal of 16336772663669 is 96636627763361.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5067068530225 + 11269704133444 = 2251015^2 + 3357038^2 .

It is a cyclic number.

It is not a de Polignac number, because 16336772663669 - 2⁸ = 16336772663413 is a prime.

It is a super-2 number, since 2×16336772663669² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16336772663689) 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 3 ways as a sum of consecutive naturals, for example, 72286604594 + ... + 72286604819.

It is an arithmetic number, because the mean of its divisors is an integer number (4120336468299).

Almost surely, 2^{16336772663669} is an apocalyptic number.

It is an amenable number.

16336772663669 is a deficient number, since it is larger than the sum of its proper divisors (144573209527).

16336772663669 is a wasteful number, since it uses less digits than its factorization.

16336772663669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144573209526.

The product of its digits is 1111065984, while the sum is 71.

The spelling of 16336772663669 in words is "sixteen trillion, three hundred thirty-six billion, seven hundred seventy-two million, six hundred sixty-three thousand, six hundred sixty-nine".