20445632126 has 8 divisors (see below), whose sum is σ = 30674682504. Its totient is φ = 10220737960.

The previous prime is 20445632107. The next prime is 20445632143. The reversal of 20445632126 is 62123654402.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1026725 + ... + 1046448.

It is an arithmetic number, because the mean of its divisors is an integer number (3834335313).

Almost surely, 2^20445632126 is an apocalyptic number.

20445632126 is a deficient number, since it is larger than the sum of its proper divisors (10229050378).

20445632126 is a wasteful number, since it uses less digits than its factorization.

20445632126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2078106.

The product of its (nonzero) digits is 69120, while the sum is 35.

The spelling of 20445632126 in words is "twenty billion, four hundred forty-five million, six hundred thirty-two thousand, one hundred twenty-six".