22091469677840 has 40 divisors (see below), whose sum is σ = 51370727603928. Its totient is φ = 8835201100800.

The previous prime is 22091469677819. The next prime is 22091469677873. The reversal of 22091469677840 is 4877696419022.

It can be written as a sum of positive squares in 4 ways, for example, as 1232774972416 + 20858694705424 = 1110304^2 + 4567132^2 .

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

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 21155261 + ... + 22174940.

Almost surely, 2^{22091469677840} is an apocalyptic number.

22091469677840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22091469677840 is an abundant number, since it is smaller than the sum of its proper divisors (29279257926088).

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

22091469677840 is a wasteful number, since it uses less digits than its factorization.

22091469677840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43336587 (or 43336581 counting only the distinct ones).

The product of its (nonzero) digits is 73156608, while the sum is 65.

The spelling of 22091469677840 in words is "twenty-two trillion, ninety-one billion, four hundred sixty-nine million, six hundred seventy-seven thousand, eight hundred forty".