20543480433 has 24 divisors (see below), whose sum is σ = 35082465600. Its totient is φ = 11334333024.

The previous prime is 20543480417. The next prime is 20543480483. The reversal of 20543480433 is 33408434502.

20543480433 is a `hidden beast` number, since 2 + 0 + 543 + 4 + 80 + 4 + 33 = 666.

It is not a de Polignac number, because 20543480433 - 2⁴ = 20543480417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20543480483) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5620363 + ... + 5624016.

It is an arithmetic number, because the mean of its divisors is an integer number (1461769400).

Almost surely, 2^20543480433 is an apocalyptic number.

It is an amenable number.

20543480433 is a deficient number, since it is larger than the sum of its proper divisors (14538985167).

20543480433 is a wasteful number, since it uses less digits than its factorization.

20543480433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11244421 (or 11244418 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

The spelling of 20543480433 in words is "twenty billion, five hundred forty-three million, four hundred eighty thousand, four hundred thirty-three".