20627505681073 has 16 divisors (see below), whose sum is σ = 20682941469696. Its totient is φ = 20572157625040.

The previous prime is 20627505681053. The next prime is 20627505681137. The reversal of 20627505681073 is 37018650572602.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20627505681073 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20627505681073.

It is not an unprimeable number, because it can be changed into a prime (20627505681053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2860557438 + ... + 2860564648.

It is an arithmetic number, because the mean of its divisors is an integer number (1292683841856).

Almost surely, 2^{20627505681073} is an apocalyptic number.

It is an amenable number.

20627505681073 is a deficient number, since it is larger than the sum of its proper divisors (55435788623).

20627505681073 is a wasteful number, since it uses less digits than its factorization.

20627505681073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12284.

The product of its (nonzero) digits is 4233600, while the sum is 52.

The spelling of 20627505681073 in words is "twenty trillion, six hundred twenty-seven billion, five hundred five million, six hundred eighty-one thousand, seventy-three".