20430650068 has 48 divisors (see below), whose sum is σ = 38995084800. Its totient is φ = 9330387840.

The previous prime is 20430650063. The next prime is 20430650077. The reversal of 20430650068 is 86005603402.

It is a happy number.

It is a super-2 number, since 2×20430650068² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20430650063) 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 15 ways as a sum of consecutive naturals, for example, 617646 + ... + 649882.

It is an arithmetic number, because the mean of its divisors is an integer number (812397600).

Almost surely, 2^20430650068 is an apocalyptic number.

It is an amenable number.

20430650068 is a deficient number, since it is larger than the sum of its proper divisors (18564434732).

20430650068 is a wasteful number, since it uses less digits than its factorization.

20430650068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32560 (or 32558 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The spelling of 20430650068 in words is "twenty billion, four hundred thirty million, six hundred fifty thousand, sixty-eight".