20227782516 has 24 divisors (see below), whose sum is σ = 47282911200. Its totient is φ = 6730486752.

The previous prime is 20227782511. The next prime is 20227782559. The reversal of 20227782516 is 61528772202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20227782511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1506466 + ... + 1519833.

It is an arithmetic number, because the mean of its divisors is an integer number (1970121300).

Almost surely, 2^20227782516 is an apocalyptic number.

It is an amenable number.

20227782516 is an abundant number, since it is smaller than the sum of its proper divisors (27055128684).

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

20227782516 is a wasteful number, since it uses less digits than its factorization.

20227782516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3026863 (or 3026861 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 42.

The spelling of 20227782516 in words is "twenty billion, two hundred twenty-seven million, seven hundred eighty-two thousand, five hundred sixteen".