1056360493621 has 2 divisors, whose sum is σ = 1056360493622. Its totient is φ = 1056360493620.

The previous prime is 1056360493619. The next prime is 1056360493631. The reversal of 1056360493621 is 1263940636501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 872159871025 + 184200622596 = 933895^2 + 429186^2 .

It is a cyclic number.

It is not a de Polignac number, because 1056360493621 - 2¹ = 1056360493619 is a prime.

It is a super-2 number, since 2×1056360493621² (a number of 25 digits) contains 22 as substring.

Together with 1056360493619, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1056360493631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528180246810 + 528180246811.

It is an arithmetic number, because the mean of its divisors is an integer number (528180246811).

Almost surely, 2^{1056360493621} is an apocalyptic number.

It is an amenable number.

1056360493621 is a deficient number, since it is larger than the sum of its proper divisors (1).

1056360493621 is an equidigital number, since it uses as much as digits as its factorization.

1056360493621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 699840, while the sum is 46.

The spelling of 1056360493621 in words is "one trillion, fifty-six billion, three hundred sixty million, four hundred ninety-three thousand, six hundred twenty-one".