22644707146 has 4 divisors (see below), whose sum is σ = 33967060722. Its totient is φ = 11322353572.

The previous prime is 22644707143. The next prime is 22644707147. The reversal of 22644707146 is 64170744622.

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

It can be written as a sum of positive squares in only one way, i.e., 20566714921 + 2077992225 = 143411^2 + 45585^2 .

It is not an unprimeable number, because it can be changed into a prime (22644707143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5661176785 + ... + 5661176788.

Almost surely, 2^22644707146 is an apocalyptic number.

22644707146 is a deficient number, since it is larger than the sum of its proper divisors (11322353576).

22644707146 is a wasteful number, since it uses less digits than its factorization.

22644707146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11322353575.

The product of its (nonzero) digits is 451584, while the sum is 43.

The spelling of 22644707146 in words is "twenty-two billion, six hundred forty-four million, seven hundred seven thousand, one hundred forty-six".