22646142661 has 8 divisors (see below), whose sum is σ = 23479651584. Its totient is φ = 21819070560.

The previous prime is 22646142653. The next prime is 22646142671. The reversal of 22646142661 is 16624164622.

It is a happy number.

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 22646142661 - 2³ = 22646142653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22646142671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1602040 + ... + 1616113.

It is an arithmetic number, because the mean of its divisors is an integer number (2934956448).

Almost surely, 2^22646142661 is an apocalyptic number.

It is an amenable number.

22646142661 is a deficient number, since it is larger than the sum of its proper divisors (833508923).

22646142661 is a wasteful number, since it uses less digits than its factorization.

22646142661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3218411.

The product of its digits is 165888, while the sum is 40.

The spelling of 22646142661 in words is "twenty-two billion, six hundred forty-six million, one hundred forty-two thousand, six hundred sixty-one".