66232566543 has 48 divisors (see below), whose sum is σ = 105512658048. Its totient is φ = 36706612800.

The previous prime is 66232566527. The next prime is 66232566553. The reversal of 66232566543 is 34566523266.

It is a happy number.

It is not a de Polignac number, because 66232566543 - 2⁴ = 66232566527 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66232566492 and 66232566501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66232566503) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 439348 + ... + 570518.

It is an arithmetic number, because the mean of its divisors is an integer number (2198180376).

Almost surely, 2^66232566543 is an apocalyptic number.

66232566543 is a deficient number, since it is larger than the sum of its proper divisors (39280091505).

66232566543 is a wasteful number, since it uses less digits than its factorization.

66232566543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131316 (or 131305 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 48.

The spelling of 66232566543 in words is "sixty-six billion, two hundred thirty-two million, five hundred sixty-six thousand, five hundred forty-three".