1377443353656 has 16 divisors (see below), whose sum is σ = 3443608384200. Its totient is φ = 459147784544.

The previous prime is 1377443353631. The next prime is 1377443353669. The reversal of 1377443353656 is 6563533447731.

It is a junction number, because it is equal to n+sod(n) for n = 1377443353596 and 1377443353605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28696736511 + ... + 28696736558.

Almost surely, 2^{1377443353656} is an apocalyptic number.

It is an amenable number.

1377443353656 is an abundant number, since it is smaller than the sum of its proper divisors (2066165030544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1377443353656 is a wasteful number, since it uses less digits than its factorization.

1377443353656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57393473078 (or 57393473074 counting only the distinct ones).

The product of its digits is 57153600, while the sum is 57.

The spelling of 1377443353656 in words is "one trillion, three hundred seventy-seven billion, four hundred forty-three million, three hundred fifty-three thousand, six hundred fifty-six".