20315444161326 has 32 divisors (see below), whose sum is σ = 40817306535840. Its totient is φ = 6740788690944.

The previous prime is 20315444161319. The next prime is 20315444161343. The reversal of 20315444161326 is 62316144451302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3597435 + ... + 7319318.

It is an arithmetic number, because the mean of its divisors is an integer number (1275540829245).

Almost surely, 2^{20315444161326} is an apocalyptic number.

20315444161326 is an abundant number, since it is smaller than the sum of its proper divisors (20501862374514).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20315444161326 is a wasteful number, since it uses less digits than its factorization.

20315444161326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10918180.

The product of its (nonzero) digits is 414720, while the sum is 42.

The spelling of 20315444161326 in words is "twenty trillion, three hundred fifteen billion, four hundred forty-four million, one hundred sixty-one thousand, three hundred twenty-six".