1056001105605 has 32 divisors (see below), whose sum is σ = 1695544228224. Its totient is φ = 561220724736.

The previous prime is 1056001105603. The next prime is 1056001105609. The reversal of 1056001105605 is 5065011006501.

It is not a de Polignac number, because 1056001105605 - 2¹ = 1056001105603 is a prime.

It is a super-2 number, since 2×1056001105605² (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 (1056001105603) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 19096957 + ... + 19152173.

It is an arithmetic number, because the mean of its divisors is an integer number (52985757132).

Almost surely, 2^{1056001105605} is an apocalyptic number.

1056001105605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1056001105605 is a deficient number, since it is larger than the sum of its proper divisors (639543122619).

1056001105605 is a wasteful number, since it uses less digits than its factorization.

1056001105605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59685.

The product of its (nonzero) digits is 4500, while the sum is 30.

The spelling of 1056001105605 in words is "one trillion, fifty-six billion, one million, one hundred five thousand, six hundred five".