20001946452 has 12 divisors (see below), whose sum is σ = 46671208416. Its totient is φ = 6667315480.

The previous prime is 20001946441. The next prime is 20001946519. The reversal of 20001946452 is 25464910002.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

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, 833414424 + ... + 833414447.

It is an arithmetic number, because the mean of its divisors is an integer number (3889267368).

Almost surely, 2^20001946452 is an apocalyptic number.

It is an amenable number.

20001946452 is an abundant number, since it is smaller than the sum of its proper divisors (26669261964).

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

20001946452 is a wasteful number, since it uses less digits than its factorization.

20001946452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1666828878 (or 1666828876 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The spelling of 20001946452 in words is "twenty billion, one million, nine hundred forty-six thousand, four hundred fifty-two".