20126065368 has 64 divisors (see below), whose sum is σ = 51242688000. Its totient is φ = 6585351552.

The previous prime is 20126065367. The next prime is 20126065369. The reversal of 20126065368 is 86356062102.

It is an interprime number because it is at equal distance from previous prime (20126065367) and next prime (20126065369).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20126065367) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 993921 + ... + 1013967.

It is an arithmetic number, because the mean of its divisors is an integer number (800667000).

Almost surely, 2^20126065368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20126065368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25621344000).

20126065368 is an abundant number, since it is smaller than the sum of its proper divisors (31116622632).

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

20126065368 is a wasteful number, since it uses less digits than its factorization.

20126065368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20824 (or 20820 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The spelling of 20126065368 in words is "twenty billion, one hundred twenty-six million, sixty-five thousand, three hundred sixty-eight".