8465665601 has 4 divisors (see below), whose sum is σ = 8694467412. Its totient is φ = 8236863792.

The previous prime is 8465665553. The next prime is 8465665603. The reversal of 8465665601 is 1065665648.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7496962225 + 968703376 = 86585^2 + 31124^2 .

It is a cyclic number.

It is not a de Polignac number, because 8465665601 - 2¹⁴ = 8465649217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8465665603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114400850 + ... + 114400923.

It is an arithmetic number, because the mean of its divisors is an integer number (2173616853).

Almost surely, 2^8465665601 is an apocalyptic number.

It is an amenable number.

8465665601 is a deficient number, since it is larger than the sum of its proper divisors (228801811).

8465665601 is a wasteful number, since it uses less digits than its factorization.

8465665601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228801810.

The product of its (nonzero) digits is 1036800, while the sum is 47.

The square root of 8465665601 is about 92009.0517340549. The cubic root of 8465665601 is about 2038.0759766037.

Adding to 8465665601 its sum of digits (47), we get a palindrome (8465665648).

The spelling of 8465665601 in words is "eight billion, four hundred sixty-five million, six hundred sixty-five thousand, six hundred one".