1056165606655 has 8 divisors (see below), whose sum is σ = 1267441675632. Its totient is φ = 844903853568.

The previous prime is 1056165606619. The next prime is 1056165606667. The reversal of 1056165606655 is 5566065616501.

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 1056165606655 - 2¹⁹ = 1056165082367 is a prime.

It is a super-2 number, since 2×1056165606655² (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 pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3415989 + ... + 3712318.

It is an arithmetic number, because the mean of its divisors is an integer number (158430209454).

Almost surely, 2^{1056165606655} is an apocalyptic number.

1056165606655 is a deficient number, since it is larger than the sum of its proper divisors (211276068977).

1056165606655 is an equidigital number, since it uses as much as digits as its factorization.

1056165606655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7157945.

The product of its (nonzero) digits is 4860000, while the sum is 52.

The spelling of 1056165606655 in words is "one trillion, fifty-six billion, one hundred sixty-five million, six hundred six thousand, six hundred fifty-five".