13406666677 has 4 divisors (see below), whose sum is σ = 13509007776. Its totient is φ = 13304325580.

The previous prime is 13406666671. The next prime is 13406666699. The reversal of 13406666677 is 77666660431.

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 13406666677 - 2²⁷ = 13272448949 is a prime.

It is a super-2 number, since 2×13406666677² (a number of 21 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 (13406666671) 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, 51170353 + ... + 51170614.

It is an arithmetic number, because the mean of its divisors is an integer number (3377251944).

Almost surely, 2^13406666677 is an apocalyptic number.

It is an amenable number.

13406666677 is a deficient number, since it is larger than the sum of its proper divisors (102341099).

13406666677 is a wasteful number, since it uses less digits than its factorization.

13406666677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102341098.

The product of its (nonzero) digits is 4572288, while the sum is 52.

The spelling of 13406666677 in words is "thirteen billion, four hundred six million, six hundred sixty-six thousand, six hundred seventy-seven".