66412624027 has 2 divisors, whose sum is σ = 66412624028. Its totient is φ = 66412624026.

The previous prime is 66412624013. The next prime is 66412624093. The reversal of 66412624027 is 72042621466.

66412624027 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66412624027 is a prime.

It is not a weakly prime, because it can be changed into another prime (66412624097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33206312013 + 33206312014.

It is an arithmetic number, because the mean of its divisors is an integer number (33206312014).

Almost surely, 2^66412624027 is an apocalyptic number.

66412624027 is a deficient number, since it is larger than the sum of its proper divisors (1).

66412624027 is an equidigital number, since it uses as much as digits as its factorization.

66412624027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 193536, while the sum is 40.

The spelling of 66412624027 in words is "sixty-six billion, four hundred twelve million, six hundred twenty-four thousand, twenty-seven".