66334332353251 has 2 divisors, whose sum is σ = 66334332353252. Its totient is φ = 66334332353250.

The previous prime is 66334332353197. The next prime is 66334332353369. The reversal of 66334332353251 is 15235323343366.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66334332353251 - 2²⁵ = 66334298798819 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66334332353195 and 66334332353204.

It is not a weakly prime, because it can be changed into another prime (66334332353551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33167166176625 + 33167166176626.

It is an arithmetic number, because the mean of its divisors is an integer number (33167166176626).

Almost surely, 2^{66334332353251} is an apocalyptic number.

66334332353251 is a deficient number, since it is larger than the sum of its proper divisors (1).

66334332353251 is an equidigital number, since it uses as much as digits as its factorization.

66334332353251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10497600, while the sum is 49.

The spelling of 66334332353251 in words is "sixty-six trillion, three hundred thirty-four billion, three hundred thirty-two million, three hundred fifty-three thousand, two hundred fifty-one".