66250630331 has 2 divisors, whose sum is σ = 66250630332. Its totient is φ = 66250630330.

The previous prime is 66250630279. The next prime is 66250630361. The reversal of 66250630331 is 13303605266.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66250630331 - 2¹⁰ = 66250629307 is a prime.

It is a super-2 number, since 2×66250630331² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66250630291 and 66250630300.

It is not a weakly prime, because it can be changed into another prime (66250630361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33125315165 + 33125315166.

It is an arithmetic number, because the mean of its divisors is an integer number (33125315166).

Almost surely, 2^66250630331 is an apocalyptic number.

66250630331 is a deficient number, since it is larger than the sum of its proper divisors (1).

66250630331 is an equidigital number, since it uses as much as digits as its factorization.

66250630331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 35.

The spelling of 66250630331 in words is "sixty-six billion, two hundred fifty million, six hundred thirty thousand, three hundred thirty-one".