20568036736028 has 24 divisors (see below), whose sum is σ = 38111967647712. Its totient is φ = 9678922343424.

The previous prime is 20568036735991. The next prime is 20568036736057. The reversal of 20568036736028 is 82063763086502.

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, 1967201 + ... + 6708647.

It is an arithmetic number, because the mean of its divisors is an integer number (1587998651988).

Almost surely, 2^{20568036736028} is an apocalyptic number.

It is an amenable number.

20568036736028 is a deficient number, since it is larger than the sum of its proper divisors (17543930911684).

20568036736028 is a wasteful number, since it uses less digits than its factorization.

20568036736028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4805261 (or 4805259 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 56.

The spelling of 20568036736028 in words is "twenty trillion, five hundred sixty-eight billion, thirty-six million, seven hundred thirty-six thousand, twenty-eight".