20005216474722 has 8 divisors (see below), whose sum is σ = 40010432949456. Its totient is φ = 6668405491572.

The previous prime is 20005216474721. The next prime is 20005216474739. The reversal of 20005216474722 is 22747461250002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

20005216474722 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (20005216474721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1667101372888 + ... + 1667101372899.

It is an arithmetic number, because the mean of its divisors is an integer number (5001304118682).

Almost surely, 2^{20005216474722} is an apocalyptic number.

20005216474722 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20005216474722 is a wasteful number, since it uses less digits than its factorization.

20005216474722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3334202745792.

The product of its (nonzero) digits is 376320, while the sum is 42.

The spelling of 20005216474722 in words is "twenty trillion, five billion, two hundred sixteen million, four hundred seventy-four thousand, seven hundred twenty-two".