22288163646 has 32 divisors (see below), whose sum is σ = 51124416768. Its totient is φ = 6345541440.

The previous prime is 22288163621. The next prime is 22288163671. The reversal of 22288163646 is 64636188222.

It is an interprime number because it is at equal distance from previous prime (22288163621) and next prime (22288163671).

It is a junction number, because it is equal to n+sod(n) for n = 22288163595 and 22288163604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 925695 + ... + 949466.

It is an arithmetic number, because the mean of its divisors is an integer number (1597638024).

Almost surely, 2^22288163646 is an apocalyptic number.

22288163646 is an abundant number, since it is smaller than the sum of its proper divisors (28836253122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22288163646 is a wasteful number, since it uses less digits than its factorization.

22288163646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1875456.

The product of its digits is 1327104, while the sum is 48.

The spelling of 22288163646 in words is "twenty-two billion, two hundred eighty-eight million, one hundred sixty-three thousand, six hundred forty-six".