66704001031 has 2 divisors, whose sum is σ = 66704001032. Its totient is φ = 66704001030.

The previous prime is 66704001019. The next prime is 66704001041. The reversal of 66704001031 is 13010040766.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66704001031 - 2⁵ = 66704000999 is a prime.

It is a super-2 number, since 2×66704001031² (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 (66704001041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33352000515 + 33352000516.

It is an arithmetic number, because the mean of its divisors is an integer number (33352000516).

Almost surely, 2^66704001031 is an apocalyptic number.

66704001031 is a deficient number, since it is larger than the sum of its proper divisors (1).

66704001031 is an equidigital number, since it uses as much as digits as its factorization.

66704001031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 28.

Adding to 66704001031 its reverse (13010040766), we get a palindrome (79714041797).

The spelling of 66704001031 in words is "sixty-six billion, seven hundred four million, one thousand, thirty-one".