10805605815852 has 18 divisors (see below), whose sum is σ = 27314170256828. Its totient is φ = 3601868605272.

The previous prime is 10805605815817. The next prime is 10805605815853. The reversal of 10805605815852 is 25851850650801.

10805605815852 is a `hidden beast` number, since 1 + 0 + 8 + 0 + 5 + 6 + 0 + 58 + 1 + 585 + 2 = 666.

10805605815852 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×10805605815852² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10805605815853) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 150077858518 + ... + 150077858589.

Almost surely, 2^{10805605815852} is an apocalyptic number.

10805605815852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10805605815852 is an abundant number, since it is smaller than the sum of its proper divisors (16508564440976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10805605815852 is a wasteful number, since it uses less digits than its factorization.

10805605815852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300155717117 (or 300155717112 counting only the distinct ones).

The product of its (nonzero) digits is 3840000, while the sum is 54.

The spelling of 10805605815852 in words is "ten trillion, eight hundred five billion, six hundred five million, eight hundred fifteen thousand, eight hundred fifty-two".