1056003635165 has 4 divisors (see below), whose sum is σ = 1267204362204. Its totient is φ = 844802908128.

The previous prime is 1056003635153. The next prime is 1056003635173. The reversal of 1056003635165 is 5615363006501.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 564212801881 + 491790833284 = 751141^2 + 701278^2 .

It is a cyclic number.

It is not a de Polignac number, because 1056003635165 - 2¹² = 1056003631069 is a prime.

It is a super-2 number, since 2×1056003635165² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

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, 105600363512 + ... + 105600363521.

It is an arithmetic number, because the mean of its divisors is an integer number (316801090551).

Almost surely, 2^{1056003635165} is an apocalyptic number.

It is an amenable number.

1056003635165 is a deficient number, since it is larger than the sum of its proper divisors (211200727039).

1056003635165 is an equidigital number, since it uses as much as digits as its factorization.

1056003635165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211200727038.

The product of its (nonzero) digits is 243000, while the sum is 41.

The spelling of 1056003635165 in words is "one trillion, fifty-six billion, three million, six hundred thirty-five thousand, one hundred sixty-five".