20725752586368 has 64 divisors (see below), whose sum is σ = 55054777741920. Its totient is φ = 6908333537280.

The previous prime is 20725752586277. The next prime is 20725752586379. The reversal of 20725752586368 is 86368525752702.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 20725752586299 and 20725752586308.

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, 9771871 + ... + 11702177.

Almost surely, 2^{20725752586368} is an apocalyptic number.

It is an amenable number.

20725752586368 is an abundant number, since it is smaller than the sum of its proper divisors (34329025155552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20725752586368 is a wasteful number, since it uses less digits than its factorization.

20725752586368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1958285 (or 1958273 counting only the distinct ones).

The product of its (nonzero) digits is 338688000, while the sum is 66.

The spelling of 20725752586368 in words is "twenty trillion, seven hundred twenty-five billion, seven hundred fifty-two million, five hundred eighty-six thousand, three hundred sixty-eight".