66034315939 has 2 divisors, whose sum is σ = 66034315940. Its totient is φ = 66034315938.

The previous prime is 66034315883. The next prime is 66034315957. The reversal of 66034315939 is 93951343066.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66034315939 - 2⁹ = 66034315427 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66034315892 and 66034315901.

It is not a weakly prime, because it can be changed into another prime (66034310939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33017157969 + 33017157970.

It is an arithmetic number, because the mean of its divisors is an integer number (33017157970).

Almost surely, 2^66034315939 is an apocalyptic number.

66034315939 is a deficient number, since it is larger than the sum of its proper divisors (1).

66034315939 is an equidigital number, since it uses as much as digits as its factorization.

66034315939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1574640, while the sum is 49.

The spelling of 66034315939 in words is "sixty-six billion, thirty-four million, three hundred fifteen thousand, nine hundred thirty-nine".