1373055656512 has 56 divisors (see below), whose sum is σ = 2813280948992. Its totient is φ = 664208985600.

The previous prime is 1373055656491. The next prime is 1373055656519. The reversal of 1373055656512 is 2156565503731.

It is a super-2 number, since 2×1373055656512² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1373055656519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7711078 + ... + 7887130.

Almost surely, 2^{1373055656512} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1373055656512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1406640474496).

1373055656512 is an abundant number, since it is smaller than the sum of its proper divisors (1440225292480).

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

1373055656512 is a wasteful number, since it uses less digits than its factorization.

1373055656512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180027 (or 180017 counting only the distinct ones).

The product of its (nonzero) digits is 2835000, while the sum is 49.

The spelling of 1373055656512 in words is "one trillion, three hundred seventy-three billion, fifty-five million, six hundred fifty-six thousand, five hundred twelve".