42660556327 has 2 divisors, whose sum is σ = 42660556328. Its totient is φ = 42660556326.

The previous prime is 42660556283. The next prime is 42660556339. The reversal of 42660556327 is 72365506624.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42660556327 - 2⁷ = 42660556199 is a prime.

It is a super-2 number, since 2×42660556327² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42660556357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21330278163 + 21330278164.

It is an arithmetic number, because the mean of its divisors is an integer number (21330278164).

Almost surely, 2^42660556327 is an apocalyptic number.

42660556327 is a deficient number, since it is larger than the sum of its proper divisors (1).

42660556327 is an equidigital number, since it uses as much as digits as its factorization.

42660556327 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1814400, while the sum is 46.

The spelling of 42660556327 in words is "forty-two billion, six hundred sixty million, five hundred fifty-six thousand, three hundred twenty-seven".