20063506545 has 32 divisors (see below), whose sum is σ = 35674387200. Its totient is φ = 10698757632.

The previous prime is 20063506517. The next prime is 20063506553. The reversal of 20063506545 is 54560536002.

It is a happy number.

20063506545 is a `hidden beast` number, since 2 + 0 + 0 + 63 + 50 + 6 + 545 = 666.

It is not a de Polignac number, because 20063506545 - 2⁹ = 20063506033 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1389121 + ... + 1403489.

It is an arithmetic number, because the mean of its divisors is an integer number (1114824600).

Almost surely, 2^20063506545 is an apocalyptic number.

It is an amenable number.

20063506545 is a deficient number, since it is larger than the sum of its proper divisors (15610880655).

20063506545 is a wasteful number, since it uses less digits than its factorization.

20063506545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24726 (or 24720 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

The spelling of 20063506545 in words is "twenty billion, sixty-three million, five hundred six thousand, five hundred forty-five".