12677666677621 has 32 divisors (see below), whose sum is σ = 14838036627456. Its totient is φ = 10715489136000.

The previous prime is 12677666677619. The next prime is 12677666677691.

12677666677621 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 12677666677621 - 2¹ = 12677666677619 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12677666677691) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 556140 + ... + 5066026.

It is an arithmetic number, because the mean of its divisors is an integer number (463688644608).

Almost surely, 2^{12677666677621} is an apocalyptic number.

12677666677621 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12677666677621 is a deficient number, since it is larger than the sum of its proper divisors (2160369949835).

12677666677621 is a wasteful number, since it uses less digits than its factorization.

12677666677621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4510233.

The product of its digits is 448084224, while the sum is 70.

The spelling of 12677666677621 in words is "twelve trillion, six hundred seventy-seven billion, six hundred sixty-six million, six hundred seventy-seven thousand, six hundred twenty-one".