1376656686680 has 64 divisors (see below), whose sum is σ = 3379872264480. Its totient is φ = 500483046400.

The previous prime is 1376656686659. The next prime is 1376656686707. The reversal of 1376656686680 is 866866566731.

It is a self number, because there is not a number n which added to its sum of digits gives 1376656686680.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1484510 + ... + 2226450.

Almost surely, 2^{1376656686680} is an apocalyptic number.

1376656686680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1376656686680 is an abundant number, since it is smaller than the sum of its proper divisors (2003215577800).

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

1376656686680 is a wasteful number, since it uses less digits than its factorization.

1376656686680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746180 (or 746176 counting only the distinct ones).

The product of its (nonzero) digits is 313528320, while the sum is 68.

The spelling of 1376656686680 in words is "one trillion, three hundred seventy-six billion, six hundred fifty-six million, six hundred eighty-six thousand, six hundred eighty".