20440667496 has 16 divisors (see below), whose sum is σ = 51101668800. Its totient is φ = 6813555824.

The previous prime is 20440667461. The next prime is 20440667497. The reversal of 20440667496 is 69476604402.

It is not an unprimeable number, because it can be changed into a prime (20440667497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 425847216 + ... + 425847263.

It is an arithmetic number, because the mean of its divisors is an integer number (3193854300).

Almost surely, 2^20440667496 is an apocalyptic number.

It is an amenable number.

20440667496 is an abundant number, since it is smaller than the sum of its proper divisors (30661001304).

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

20440667496 is a wasteful number, since it uses less digits than its factorization.

20440667496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851694488 (or 851694484 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 48.

The spelling of 20440667496 in words is "twenty billion, four hundred forty million, six hundred sixty-seven thousand, four hundred ninety-six".