20004166312 has 48 divisors (see below), whose sum is σ = 40682909340. Its totient is φ = 9217248768.

The previous prime is 20004166253. The next prime is 20004166319. The reversal of 20004166312 is 21366140002.

It can be written as a sum of positive squares in 6 ways, for example, as 368870436 + 19635295876 = 19206^2 + 140126^2 .

It is not an unprimeable number, because it can be changed into a prime (20004166319) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 816708 + ... + 840844.

Almost surely, 2^20004166312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20004166312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20341454670).

20004166312 is an abundant number, since it is smaller than the sum of its proper divisors (20678743028).

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

20004166312 is a wasteful number, since it uses less digits than its factorization.

20004166312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24782 (or 24765 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The spelling of 20004166312 in words is "twenty billion, four million, one hundred sixty-six thousand, three hundred twelve".