22023022646 has 16 divisors (see below), whose sum is σ = 34192484640. Its totient is φ = 10625946240.

The previous prime is 22023022643. The next prime is 22023022711. The reversal of 22023022646 is 64622032022.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22023022643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2510 + ... + 209886.

It is an arithmetic number, because the mean of its divisors is an integer number (2137030290).

Almost surely, 2^22023022646 is an apocalyptic number.

22023022646 is a deficient number, since it is larger than the sum of its proper divisors (12169461994).

22023022646 is a wasteful number, since it uses less digits than its factorization.

22023022646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209239.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 22023022646 its reverse (64622032022), we get a palindrome (86645054668).

The spelling of 22023022646 in words is "twenty-two billion, twenty-three million, twenty-two thousand, six hundred forty-six".