20216064612 has 24 divisors (see below), whose sum is σ = 47177141536. Its totient is φ = 6737784768.

The previous prime is 20216064601. The next prime is 20216064637. The reversal of 20216064612 is 21646061202.

It is a self number, because there is not a number n which added to its sum of digits gives 20216064612.

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 7 ways as a sum of consecutive naturals, for example, 16393 + ... + 201744.

Almost surely, 2^20216064612 is an apocalyptic number.

It is an amenable number.

20216064612 is an abundant number, since it is smaller than the sum of its proper divisors (26961076924).

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

20216064612 is a wasteful number, since it uses less digits than its factorization.

20216064612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225867 (or 225865 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The spelling of 20216064612 in words is "twenty billion, two hundred sixteen million, sixty-four thousand, six hundred twelve".