1056326720461 has 8 divisors (see below), whose sum is σ = 1057577407200. Its totient is φ = 1055076516240.

The previous prime is 1056326720437. The next prime is 1056326720479. The reversal of 1056326720461 is 1640276236501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1056326720461 - 2¹⁷ = 1056326589389 is a prime.

It is a super-2 number, since 2×1056326720461² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1056326720161) 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, 4358370 + ... + 4594348.

It is an arithmetic number, because the mean of its divisors is an integer number (132197175900).

Almost surely, 2^{1056326720461} is an apocalyptic number.

It is an amenable number.

1056326720461 is a deficient number, since it is larger than the sum of its proper divisors (1250686739).

1056326720461 is a wasteful number, since it uses less digits than its factorization.

1056326720461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241259.

The product of its (nonzero) digits is 362880, while the sum is 43.

The spelling of 1056326720461 in words is "one trillion, fifty-six billion, three hundred twenty-six million, seven hundred twenty thousand, four hundred sixty-one".