20654541445363 has 6 divisors (see below), whose sum is σ = 24026711477316. Its totient is φ = 17703892667412.

The previous prime is 20654541445271. The next prime is 20654541445387. The reversal of 20654541445363 is 36354414545602.

It is a de Polignac number, because none of the positive numbers 2^k-20654541445363 is a prime.

It is a super-2 number, since 2×20654541445363² (a number of 27 digits) contains 22 as substring.

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 20654541445363.

It is not an unprimeable number, because it can be changed into a prime (20654541445163) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 210760626945 + ... + 210760627042.

It is an arithmetic number, because the mean of its divisors is an integer number (4004451912886).

Almost surely, 2^{20654541445363} is an apocalyptic number.

20654541445363 is a deficient number, since it is larger than the sum of its proper divisors (3372170031953).

20654541445363 is an equidigital number, since it uses as much as digits as its factorization.

20654541445363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421521254001 (or 421521253994 counting only the distinct ones).

The product of its (nonzero) digits is 20736000, while the sum is 52.

The spelling of 20654541445363 in words is "twenty trillion, six hundred fifty-four billion, five hundred forty-one million, four hundred forty-five thousand, three hundred sixty-three".