20653545463 has 8 divisors (see below), whose sum is σ = 21870173232. Its totient is φ = 19437108096.

The previous prime is 20653545443. The next prime is 20653545481. The reversal of 20653545463 is 36454535602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20653545463 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 (20653545443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218181 + ... + 298177.

It is an arithmetic number, because the mean of its divisors is an integer number (2733771654).

Almost surely, 2^20653545463 is an apocalyptic number.

20653545463 is a deficient number, since it is larger than the sum of its proper divisors (1216627769).

20653545463 is a wasteful number, since it uses less digits than its factorization.

20653545463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95201.

The product of its (nonzero) digits is 1296000, while the sum is 43.

The spelling of 20653545463 in words is "twenty billion, six hundred fifty-three million, five hundred forty-five thousand, four hundred sixty-three".