16667674377 has 4 divisors (see below), whose sum is σ = 22223565840. Its totient is φ = 11111782916.

The previous prime is 16667674369. The next prime is 16667674417. The reversal of 16667674377 is 77347676661.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16667674377 - 2³ = 16667674369 is a prime.

It is a super-2 number, since 2×16667674377² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16667674377.

It is not an unprimeable number, because it can be changed into a prime (16667674337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2777945727 + ... + 2777945732.

It is an arithmetic number, because the mean of its divisors is an integer number (5555891460).

Almost surely, 2^16667674377 is an apocalyptic number.

It is an amenable number.

16667674377 is a deficient number, since it is larger than the sum of its proper divisors (5555891463).

16667674377 is an equidigital number, since it uses as much as digits as its factorization.

16667674377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5555891462.

The product of its digits is 37340352, while the sum is 60.

The spelling of 16667674377 in words is "sixteen billion, six hundred sixty-seven million, six hundred seventy-four thousand, three hundred seventy-seven".