1345061661056 has 32 divisors (see below), whose sum is σ = 2682164882280. Its totient is φ = 671890867200.

The previous prime is 1345061661049. The next prime is 1345061661103. The reversal of 1345061661056 is 6501661605431.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 1345061660998 and 1345061661016.

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, 4864661 + ... + 5133716.

Almost surely, 2^{1345061661056} is an apocalyptic number.

1345061661056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1345061661056 is a deficient number, since it is larger than the sum of its proper divisors (1337103221224).

1345061661056 is an equidigital number, since it uses as much as digits as its factorization.

1345061661056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9999442 (or 9999430 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 44.

The spelling of 1345061661056 in words is "one trillion, three hundred forty-five billion, sixty-one million, six hundred sixty-one thousand, fifty-six".