10633645665 has 24 divisors (see below), whose sum is σ = 18454498920. Its totient is φ = 5664248064.

The previous prime is 10633645663. The next prime is 10633645691. The reversal of 10633645665 is 56654633601.

10633645665 is a `hidden beast` number, since 1 + 0 + 633 + 6 + 4 + 5 + 6 + 6 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 936910881 + 9696734784 = 30609^2 + 98472^2 .

It is not a de Polignac number, because 10633645665 - 2¹ = 10633645663 is a prime.

It is a super-2 number, since 2×10633645665² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 10633645665.

It is not an unprimeable number, because it can be changed into a prime (10633645663) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 109642 + ... + 182451.

It is an arithmetic number, because the mean of its divisors is an integer number (768937455).

Almost surely, 2^10633645665 is an apocalyptic number.

10633645665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10633645665 is a deficient number, since it is larger than the sum of its proper divisors (7820853255).

10633645665 is a wasteful number, since it uses less digits than its factorization.

10633645665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292913 (or 292910 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 45.

The spelling of 10633645665 in words is "ten billion, six hundred thirty-three million, six hundred forty-five thousand, six hundred sixty-five".