4066543266451 has 4 divisors (see below), whose sum is σ = 4066551007432. Its totient is φ = 4066535525472.

The previous prime is 4066543266407. The next prime is 4066543266509. The reversal of 4066543266451 is 1546623456604.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4066543266451 - 2⁷ = 4066543266323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4066543266251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3020241 + ... + 4153906.

It is an arithmetic number, because the mean of its divisors is an integer number (1016637751858).

Almost surely, 2^{4066543266451} is an apocalyptic number.

4066543266451 is a deficient number, since it is larger than the sum of its proper divisors (7740981).

4066543266451 is an equidigital number, since it uses as much as digits as its factorization.

4066543266451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7740980.

The product of its (nonzero) digits is 12441600, while the sum is 52.

The spelling of 4066543266451 in words is "four trillion, sixty-six billion, five hundred forty-three million, two hundred sixty-six thousand, four hundred fifty-one".