20447474606 has 64 divisors (see below), whose sum is σ = 35147649600. Its totient is φ = 8896462848.

The previous prime is 20447474603. The next prime is 20447474633. The reversal of 20447474606 is 60647474402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20447474603) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21455426 + ... + 21456378.

It is an arithmetic number, because the mean of its divisors is an integer number (549182025).

Almost surely, 2^20447474606 is an apocalyptic number.

20447474606 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20447474606 is a deficient number, since it is larger than the sum of its proper divisors (14700174994).

20447474606 is a wasteful number, since it uses less digits than its factorization.

20447474606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1270 (or 1244 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 44.

The spelling of 20447474606 in words is "twenty billion, four hundred forty-seven million, four hundred seventy-four thousand, six hundred six".