22660045651 has 4 divisors (see below), whose sum is σ = 22668834600. Its totient is φ = 22651256704.

The previous prime is 22660045649. The next prime is 22660045669. The reversal of 22660045651 is 15654006622.

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

It is a cyclic number.

It is not a de Polignac number, because 22660045651 - 2¹ = 22660045649 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22660045651.

It is not an unprimeable number, because it can be changed into a prime (22660045621) 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, 4390606 + ... + 4395763.

It is an arithmetic number, because the mean of its divisors is an integer number (5667208650).

Almost surely, 2^22660045651 is an apocalyptic number.

22660045651 is a deficient number, since it is larger than the sum of its proper divisors (8788949).

22660045651 is an equidigital number, since it uses as much as digits as its factorization.

22660045651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8788948.

The product of its (nonzero) digits is 86400, while the sum is 37.

The spelling of 22660045651 in words is "twenty-two billion, six hundred sixty million, forty-five thousand, six hundred fifty-one".