2320066661 has 8 divisors (see below), whose sum is σ = 2557075584. Its totient is φ = 2087406720.

The previous prime is 2320066643. The next prime is 2320066673. The reversal of 2320066661 is 1666600232.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2320066661 - 2⁶ = 2320066597 is a prime.

It is a super-3 number, since 3×2320066661³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2320066601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1086125 + ... + 1088258.

It is an arithmetic number, because the mean of its divisors is an integer number (319634448).

Almost surely, 2^2320066661 is an apocalyptic number.

It is an amenable number.

2320066661 is a deficient number, since it is larger than the sum of its proper divisors (237008923).

2320066661 is a wasteful number, since it uses less digits than its factorization.

2320066661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2174491.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 2320066661 is about 48167.0702970401. The cubic root of 2320066661 is about 1323.8338686856.

Adding to 2320066661 its reverse (1666600232), we get a palindrome (3986666893).

The spelling of 2320066661 in words is "two billion, three hundred twenty million, sixty-six thousand, six hundred sixty-one".