22076401640 has 32 divisors (see below), whose sum is σ = 50609114280. Its totient is φ = 8663945472.

The previous prime is 22076401601. The next prime is 22076401657. The reversal of 22076401640 is 4610467022.

It can be written as a sum of positive squares in 4 ways, for example, as 20611196356 + 1465205284 = 143566^2 + 38278^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22076401597 and 22076401606.

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, 5204579 + ... + 5208818.

Almost surely, 2^22076401640 is an apocalyptic number.

22076401640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22076401640 is an abundant number, since it is smaller than the sum of its proper divisors (28532712640).

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

22076401640 is a wasteful number, since it uses less digits than its factorization.

22076401640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10413461 (or 10413457 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

Adding to 22076401640 its reverse (4610467022), we get a palindrome (26686868662).

The spelling of 22076401640 in words is "twenty-two billion, seventy-six million, four hundred one thousand, six hundred forty".