10805605815854 has 16 divisors (see below), whose sum is σ = 16212547284480. Its totient is φ = 5401423536600.

The previous prime is 10805605815853. The next prime is 10805605815863. The reversal of 10805605815854 is 45851850650801.

It is a super-2 number, since 2×10805605815854² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10805605815854.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10805605815853) 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 7 ways as a sum of consecutive naturals, for example, 224536007 + ... + 224584125.

It is an arithmetic number, because the mean of its divisors is an integer number (1013284205280).

Almost surely, 2^{10805605815854} is an apocalyptic number.

10805605815854 is a deficient number, since it is larger than the sum of its proper divisors (5406941468626).

10805605815854 is a wasteful number, since it uses less digits than its factorization.

10805605815854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74455.

The product of its (nonzero) digits is 7680000, while the sum is 56.

The spelling of 10805605815854 in words is "ten trillion, eight hundred five billion, six hundred five million, eight hundred fifteen thousand, eight hundred fifty-four".