1056465255165 has 64 divisors (see below), whose sum is σ = 1761051801600. Its totient is φ = 540167814144.

The previous prime is 1056465255163. The next prime is 1056465255169. The reversal of 1056465255165 is 5615525646501.

It is not a de Polignac number, because 1056465255165 - 2¹ = 1056465255163 is a prime.

It is a super-2 number, since 2×1056465255165² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1056465255163) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 37720947 + ... + 37748943.

It is an arithmetic number, because the mean of its divisors is an integer number (27516434400).

Almost surely, 2^{1056465255165} is an apocalyptic number.

1056465255165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1056465255165 is a deficient number, since it is larger than the sum of its proper divisors (704586546435).

1056465255165 is a wasteful number, since it uses less digits than its factorization.

1056465255165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28646.

The product of its (nonzero) digits is 5400000, while the sum is 51.

The spelling of 1056465255165 in words is "one trillion, fifty-six billion, four hundred sixty-five million, two hundred fifty-five thousand, one hundred sixty-five".