1056662157065 has 8 divisors (see below), whose sum is σ = 1269347843400. Its totient is φ = 844427555712.

The previous prime is 1056662157059. The next prime is 1056662157073. The reversal of 1056662157065 is 5607512666501.

It can be written as a sum of positive squares in 4 ways, for example, as 187793955904 + 868868201161 = 433352^2 + 932131^2 .

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 1056662157065 - 2¹² = 1056662152969 is a prime.

It is a super-2 number, since 2×1056662157065² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112766090 + ... + 112775459.

It is an arithmetic number, because the mean of its divisors is an integer number (158668480425).

Almost surely, 2^{1056662157065} is an apocalyptic number.

It is an amenable number.

1056662157065 is a deficient number, since it is larger than the sum of its proper divisors (212685686335).

1056662157065 is an equidigital number, since it uses as much as digits as its factorization.

1056662157065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225542491.

The product of its (nonzero) digits is 2268000, while the sum is 50.

The spelling of 1056662157065 in words is "one trillion, fifty-six billion, six hundred sixty-two million, one hundred fifty-seven thousand, sixty-five".