866065445 has 24 divisors (see below), whose sum is σ = 1247966208. Its totient is φ = 574711200.

The previous prime is 866065441. The next prime is 866065457. The reversal of 866065445 is 544560668.

It is not a de Polignac number, because 866065445 - 2² = 866065441 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 866065396 and 866065405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866065441) 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, 49421 + ... + 64610.

It is an arithmetic number, because the mean of its divisors is an integer number (51998592).

Almost surely, 2^866065445 is an apocalyptic number.

It is an amenable number.

866065445 is a deficient number, since it is larger than the sum of its proper divisors (381900763).

866065445 is a wasteful number, since it uses less digits than its factorization.

866065445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114081 (or 114074 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 44.

The square root of 866065445 is about 29428.9898739321. The cubic root of 866065445 is about 953.1989831240.

The spelling of 866065445 in words is "eight hundred sixty-six million, sixty-five thousand, four hundred forty-five".