22350129640 has 16 divisors (see below), whose sum is σ = 50287791780. Its totient is φ = 8940051840.

The previous prime is 22350129617. The next prime is 22350129691. The reversal of 22350129640 is 4692105322.

It can be written as a sum of positive squares in 2 ways, for example, as 20979204964 + 1370924676 = 144842^2 + 37026^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22350129596 and 22350129605.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 279376581 + ... + 279376660.

Almost surely, 2^22350129640 is an apocalyptic number.

22350129640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22350129640 is an abundant number, since it is smaller than the sum of its proper divisors (27937662140).

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

22350129640 is a wasteful number, since it uses less digits than its factorization.

22350129640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558753252 (or 558753248 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 22350129640 in words is "twenty-two billion, three hundred fifty million, one hundred twenty-nine thousand, six hundred forty".