20368716075128 has 32 divisors (see below), whose sum is σ = 39569349592800. Its totient is φ = 9817975101312.

The previous prime is 20368716075109. The next prime is 20368716075131. The reversal of 20368716075128 is 82157061786302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67698575 + ... + 67998782.

It is an arithmetic number, because the mean of its divisors is an integer number (1236542174775).

Almost surely, 2^{20368716075128} is an apocalyptic number.

It is an amenable number.

20368716075128 is a deficient number, since it is larger than the sum of its proper divisors (19200633517672).

20368716075128 is a wasteful number, since it uses less digits than its factorization.

20368716075128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135698039 (or 135698035 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 56.

The spelling of 20368716075128 in words is "twenty trillion, three hundred sixty-eight billion, seven hundred sixteen million, seventy-five thousand, one hundred twenty-eight".