20326446126 has 128 divisors (see below), whose sum is σ = 54702489600. Its totient is φ = 5465167200.

The previous prime is 20326446097. The next prime is 20326446137. The reversal of 20326446126 is 62164462302.

20326446126 is a `hidden beast` number, since 2 + 0 + 3 + 2 + 644 + 6 + 1 + 2 + 6 = 666.

It is a super-2 number, since 2×20326446126² (a number of 21 digits) contains 22 as substring.

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 63 ways as a sum of consecutive naturals, for example, 1075111 + ... + 1093853.

It is an arithmetic number, because the mean of its divisors is an integer number (427363200).

Almost surely, 2^20326446126 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20326446126, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27351244800).

20326446126 is an abundant number, since it is smaller than the sum of its proper divisors (34376043474).

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

20326446126 is a wasteful number, since it uses less digits than its factorization.

20326446126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18931 (or 18925 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The spelling of 20326446126 in words is "twenty billion, three hundred twenty-six million, four hundred forty-six thousand, one hundred twenty-six".