1056742130561 has 8 divisors (see below), whose sum is σ = 1138083846144. Its totient is φ = 975408109200.

The previous prime is 1056742130557. The next prime is 1056742130597. The reversal of 1056742130561 is 1650312476501.

It is a happy number.

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 1056742130561 - 2² = 1056742130557 is a prime.

It is a super-2 number, since 2×1056742130561² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1056742130531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1636715 + ... + 2189136.

It is an arithmetic number, because the mean of its divisors is an integer number (142260480768).

Almost surely, 2^{1056742130561} is an apocalyptic number.

It is an amenable number.

1056742130561 is a deficient number, since it is larger than the sum of its proper divisors (81341715583).

1056742130561 is a wasteful number, since it uses less digits than its factorization.

1056742130561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3847111.

The product of its (nonzero) digits is 151200, while the sum is 41.

The spelling of 1056742130561 in words is "one trillion, fifty-six billion, seven hundred forty-two million, one hundred thirty thousand, five hundred sixty-one".