13660603677 has 24 divisors (see below), whose sum is σ = 22561612736. Its totient is φ = 7802329536.

The previous prime is 13660603673. The next prime is 13660603687. The reversal of 13660603677 is 77630606631.

13660603677 is a `hidden beast` number, since 1 + 3 + 6 + 606 + 0 + 36 + 7 + 7 = 666.

13660603677 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13660603677 - 2² = 13660603673 is a prime.

It is a super-2 number, since 2×13660603677² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13660603673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 83898 + ... + 185364.

Almost surely, 2^13660603677 is an apocalyptic number.

It is an amenable number.

13660603677 is a deficient number, since it is larger than the sum of its proper divisors (8901009059).

13660603677 is a wasteful number, since it uses less digits than its factorization.

13660603677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103617 (or 103614 counting only the distinct ones).

The product of its (nonzero) digits is 571536, while the sum is 45.

The spelling of 13660603677 in words is "thirteen billion, six hundred sixty million, six hundred three thousand, six hundred seventy-seven".