20636625224 has 64 divisors (see below), whose sum is σ = 39450378240. Its totient is φ = 10119271680.

The previous prime is 20636625151. The next prime is 20636625277. The reversal of 20636625224 is 42252663602.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53881337 + ... + 53881719.

It is an arithmetic number, because the mean of its divisors is an integer number (616412160).

Almost surely, 2^20636625224 is an apocalyptic number.

It is an amenable number.

20636625224 is a deficient number, since it is larger than the sum of its proper divisors (18813753016).

20636625224 is a wasteful number, since it uses less digits than its factorization.

20636625224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990 (or 986 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 38.

The spelling of 20636625224 in words is "twenty billion, six hundred thirty-six million, six hundred twenty-five thousand, two hundred twenty-four".