20446620626 has 8 divisors (see below), whose sum is σ = 30670541040. Its totient is φ = 10223106948.

The previous prime is 20446620599. The next prime is 20446620629. The reversal of 20446620626 is 62602664402.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20446620626.

It is not an unprimeable number, because it can be changed into a prime (20446620629) 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, 125585 + ... + 238043.

It is an arithmetic number, because the mean of its divisors is an integer number (3833817630).

Almost surely, 2^20446620626 is an apocalyptic number.

20446620626 is a deficient number, since it is larger than the sum of its proper divisors (10223920414).

20446620626 is a wasteful number, since it uses less digits than its factorization.

20446620626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203368.

The product of its (nonzero) digits is 165888, while the sum is 38.

The spelling of 20446620626 in words is "twenty billion, four hundred forty-six million, six hundred twenty thousand, six hundred twenty-six".