10855807945 has 16 divisors (see below), whose sum is σ = 13730452560. Its totient is φ = 8226959104.

The previous prime is 10855807933. The next prime is 10855807979. The reversal of 10855807945 is 54970855801.

It can be written as a sum of positive squares in 8 ways, for example, as 4210704 + 10851597241 = 2052^2 + 104171^2 .

It is a cyclic number.

It is not a de Polignac number, because 10855807945 - 2¹⁹ = 10855283657 is a prime.

It is a super-2 number, since 2×10855807945² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10855807892 and 10855807901.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 698614 + ... + 713983.

It is an arithmetic number, because the mean of its divisors is an integer number (858153285).

Almost surely, 2^10855807945 is an apocalyptic number.

It is an amenable number.

10855807945 is a deficient number, since it is larger than the sum of its proper divisors (2874644615).

10855807945 is a wasteful number, since it uses less digits than its factorization.

10855807945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1412684.

The product of its (nonzero) digits is 2016000, while the sum is 52.

The spelling of 10855807945 in words is "ten billion, eight hundred fifty-five million, eight hundred seven thousand, nine hundred forty-five".