8345664601 has 4 divisors (see below), whose sum is σ = 8367455232. Its totient is φ = 8323873972.

The previous prime is 8345664577. The next prime is 8345664619. The reversal of 8345664601 is 1064665438.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1064665438 = 2 ⋅532332719.

It is a cyclic number.

It is not a de Polignac number, because 8345664601 - 2¹³ = 8345656409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8345664001) 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, 10894741 + ... + 10895506.

It is an arithmetic number, because the mean of its divisors is an integer number (2091863808).

Almost surely, 2^8345664601 is an apocalyptic number.

It is an amenable number.

8345664601 is a deficient number, since it is larger than the sum of its proper divisors (21790631).

8345664601 is a wasteful number, since it uses less digits than its factorization.

8345664601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21790630.

The product of its (nonzero) digits is 414720, while the sum is 43.

The square root of 8345664601 is about 91354.6090845996. The cubic root of 8345664601 is about 2028.4001891480.

The spelling of 8345664601 in words is "eight billion, three hundred forty-five million, six hundred sixty-four thousand, six hundred one".