20474665212 has 24 divisors (see below), whose sum is σ = 47831870800. Its totient is φ = 6816652416.

The previous prime is 20474665199. The next prime is 20474665213. The reversal of 20474665212 is 21256647402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20474665213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1019137 + ... + 1039032.

Almost surely, 2^20474665212 is an apocalyptic number.

It is an amenable number.

20474665212 is an abundant number, since it is smaller than the sum of its proper divisors (27357205588).

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

20474665212 is a wasteful number, since it uses less digits than its factorization.

20474665212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2059005 (or 2059003 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 39.

The spelling of 20474665212 in words is "twenty billion, four hundred seventy-four million, six hundred sixty-five thousand, two hundred twelve".