20485580522 has 16 divisors (see below), whose sum is σ = 34979332032. Its totient is φ = 8906773920.

The previous prime is 20485580519. The next prime is 20485580527. The reversal of 20485580522 is 22508558402.

It is a self number, because there is not a number n which added to its sum of digits gives 20485580522.

It is not an unprimeable number, because it can be changed into a prime (20485580527) 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, 20242163 + ... + 20243174.

It is an arithmetic number, because the mean of its divisors is an integer number (2186208252).

Almost surely, 2^20485580522 is an apocalyptic number.

20485580522 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20485580522 is a deficient number, since it is larger than the sum of its proper divisors (14493751510).

20485580522 is a wasteful number, since it uses less digits than its factorization.

20485580522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40485373.

The product of its (nonzero) digits is 256000, while the sum is 41.

The spelling of 20485580522 in words is "twenty billion, four hundred eighty-five million, five hundred eighty thousand, five hundred twenty-two".