20601055524563 has 2 divisors, whose sum is σ = 20601055524564. Its totient is φ = 20601055524562.

The previous prime is 20601055524557. The next prime is 20601055524619. The reversal of 20601055524563 is 36542555010602.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20601055524563 - 2²⁴ = 20601038747347 is a prime.

It is a super-2 number, since 2×20601055524563² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20601055514563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10300527762281 + 10300527762282.

It is an arithmetic number, because the mean of its divisors is an integer number (10300527762282).

Almost surely, 2^{20601055524563} is an apocalyptic number.

20601055524563 is a deficient number, since it is larger than the sum of its proper divisors (1).

20601055524563 is an equidigital number, since it uses as much as digits as its factorization.

20601055524563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080000, while the sum is 44.

The spelling of 20601055524563 in words is "twenty trillion, six hundred one billion, fifty-five million, five hundred twenty-four thousand, five hundred sixty-three".