20256614788 has 12 divisors (see below), whose sum is σ = 36203311872. Its totient is φ = 9912811400.

The previous prime is 20256614783. The next prime is 20256614803. The reversal of 20256614788 is 88741665202.

It is not an unprimeable number, because it can be changed into a prime (20256614783) 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 3 ways as a sum of consecutive naturals, for example, 53873788 + ... + 53874163.

It is an arithmetic number, because the mean of its divisors is an integer number (3016942656).

Almost surely, 2^20256614788 is an apocalyptic number.

It is an amenable number.

20256614788 is a deficient number, since it is larger than the sum of its proper divisors (15946697084).

20256614788 is a wasteful number, since it uses less digits than its factorization.

20256614788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107748002 (or 107748000 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 49.

The spelling of 20256614788 in words is "twenty billion, two hundred fifty-six million, six hundred fourteen thousand, seven hundred eighty-eight".