16674797677 has 8 divisors (see below), whose sum is σ = 16762525560. Its totient is φ = 16587271680.

The previous prime is 16674797641. The next prime is 16674797681. The reversal of 16674797677 is 77679747661.

It can be written as a sum of positive squares in 4 ways, for example, as 7459949641 + 9214848036 = 86371^2 + 95994^2 .

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 16674797677 - 2¹¹ = 16674795629 is a prime.

It is a super-3 number, since 3×16674797677³ (a number of 32 digits) contains 333 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 (16674797627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116599 + ... + 216667.

It is an arithmetic number, because the mean of its divisors is an integer number (2095315695).

Almost surely, 2^16674797677 is an apocalyptic number.

It is an amenable number.

16674797677 is a deficient number, since it is larger than the sum of its proper divisors (87727883).

16674797677 is a wasteful number, since it uses less digits than its factorization.

16674797677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100943.

The product of its digits is 130691232, while the sum is 67.

The spelling of 16674797677 in words is "sixteen billion, six hundred seventy-four million, seven hundred ninety-seven thousand, six hundred seventy-seven".