22006440351 has 48 divisors (see below), whose sum is σ = 37018037056. Its totient is φ = 12338085888.

The previous prime is 22006440271. The next prime is 22006440353. The reversal of 22006440351 is 15304460022.

22006440351 is a `hidden beast` number, since 2 + 200 + 6 + 4 + 403 + 51 = 666.

It is not a de Polignac number, because 22006440351 - 2²² = 22002246047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22006440353) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 875211 + ... + 900003.

Almost surely, 2^22006440351 is an apocalyptic number.

22006440351 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

22006440351 is a deficient number, since it is larger than the sum of its proper divisors (15011596705).

22006440351 is a wasteful number, since it uses less digits than its factorization.

22006440351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25072 (or 25069 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The spelling of 22006440351 in words is "twenty-two billion, six million, four hundred forty thousand, three hundred fifty-one".