20475633204012 has 72 divisors (see below), whose sum is σ = 55577860294656. Its totient is φ = 5850060747552.

The previous prime is 20475633204011. The next prime is 20475633204041. The reversal of 20475633204012 is 21040233657402.

It is a super-2 number, since 2×20475633204012² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20475633204011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30563913 + ... + 31226655.

Almost surely, 2^{20475633204012} is an apocalyptic number.

It is an amenable number.

20475633204012 is an abundant number, since it is smaller than the sum of its proper divisors (35102227090644).

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

20475633204012 is a wasteful number, since it uses less digits than its factorization.

20475633204012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715307 (or 715298 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 39.

The spelling of 20475633204012 in words is "twenty trillion, four hundred seventy-five billion, six hundred thirty-three million, two hundred four thousand, twelve".