20570642326 has 64 divisors (see below), whose sum is σ = 34866961920. Its totient is φ = 9036518400.

The previous prime is 20570642203. The next prime is 20570642329. The reversal of 20570642326 is 62324607502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20570642329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23835771 + ... + 23836633.

It is an arithmetic number, because the mean of its divisors is an integer number (544796280).

Almost surely, 2^20570642326 is an apocalyptic number.

20570642326 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20570642326 is a deficient number, since it is larger than the sum of its proper divisors (14296319594).

20570642326 is a wasteful number, since it uses less digits than its factorization.

20570642326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321.

The product of its (nonzero) digits is 120960, while the sum is 37.

The spelling of 20570642326 in words is "twenty billion, five hundred seventy million, six hundred forty-two thousand, three hundred twenty-six".