22238001680 has 40 divisors (see below), whose sum is σ = 52411632792. Its totient is φ = 8773346304.

The previous prime is 22238001677. The next prime is 22238001689. The reversal of 22238001680 is 8610083222.

It can be written as a sum of positive squares in 4 ways, for example, as 6394241296 + 15843760384 = 79964^2 + 125872^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (22238001689) 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, 1898099 + ... + 1909778.

Almost surely, 2^22238001680 is an apocalyptic number.

22238001680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22238001680 is an abundant number, since it is smaller than the sum of its proper divisors (30173631112).

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

22238001680 is a wasteful number, since it uses less digits than its factorization.

22238001680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3807963 (or 3807957 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The spelling of 22238001680 in words is "twenty-two billion, two hundred thirty-eight million, one thousand, six hundred eighty".