20706243368 has 32 divisors (see below), whose sum is σ = 40256352000. Its totient is φ = 9972876480.

The previous prime is 20706243359. The next prime is 20706243451. The reversal of 20706243368 is 86334260702.

It is a super-3 number, since 3×20706243368³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3548 + ... + 203531.

It is an arithmetic number, because the mean of its divisors is an integer number (1258011000).

Almost surely, 2^20706243368 is an apocalyptic number.

It is an amenable number.

20706243368 is a deficient number, since it is larger than the sum of its proper divisors (19550108632).

20706243368 is a wasteful number, since it uses less digits than its factorization.

20706243368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207545 (or 207541 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 41.

The spelling of 20706243368 in words is "twenty billion, seven hundred six million, two hundred forty-three thousand, three hundred sixty-eight".