20247547054663 has 16 divisors (see below), whose sum is σ = 20953554624000. Its totient is φ = 19542062195712.

The previous prime is 20247547054639. The next prime is 20247547054703. The reversal of 20247547054663 is 36645074574202.

It is a cyclic number.

It is not a de Polignac number, because 20247547054663 - 2³⁷ = 20110108101191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20247547054633) 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, 1471578778 + ... + 1471592536.

It is an arithmetic number, because the mean of its divisors is an integer number (1309597164000).

Almost surely, 2^{20247547054663} is an apocalyptic number.

20247547054663 is a deficient number, since it is larger than the sum of its proper divisors (706007569337).

20247547054663 is a wasteful number, since it uses less digits than its factorization.

20247547054663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29034.

The product of its (nonzero) digits is 33868800, while the sum is 55.

The spelling of 20247547054663 in words is "twenty trillion, two hundred forty-seven billion, five hundred forty-seven million, fifty-four thousand, six hundred sixty-three".