20446550612 has 12 divisors (see below), whose sum is σ = 36748530420. Its totient is φ = 9946970496.

The previous prime is 20446550587. The next prime is 20446550623. The reversal of 20446550612 is 21605564402.

It can be written as a sum of positive squares in 2 ways, for example, as 10898524816 + 9548025796 = 104396^2 + 97714^2 .

It is a super-2 number, since 2×20446550612² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69076037 + ... + 69076332.

It is an arithmetic number, because the mean of its divisors is an integer number (3062377535).

Almost surely, 2^20446550612 is an apocalyptic number.

It is an amenable number.

20446550612 is a deficient number, since it is larger than the sum of its proper divisors (16301979808).

20446550612 is a wasteful number, since it uses less digits than its factorization.

20446550612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138152410 (or 138152408 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

The spelling of 20446550612 in words is "twenty billion, four hundred forty-six million, five hundred fifty thousand, six hundred twelve".