66414301633 has 2 divisors, whose sum is σ = 66414301634. Its totient is φ = 66414301632.

The previous prime is 66414301627. The next prime is 66414301651. The reversal of 66414301633 is 33610341466.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66374762689 + 39538944 = 257633^2 + 6288^2 .

It is a cyclic number.

It is not a de Polignac number, because 66414301633 - 2¹⁷ = 66414170561 is a prime.

It is a super-2 number, since 2×66414301633² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66414301592 and 66414301601.

It is not a weakly prime, because it can be changed into another prime (66414301663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33207150816 + 33207150817.

It is an arithmetic number, because the mean of its divisors is an integer number (33207150817).

Almost surely, 2^66414301633 is an apocalyptic number.

It is an amenable number.

66414301633 is a deficient number, since it is larger than the sum of its proper divisors (1).

66414301633 is an equidigital number, since it uses as much as digits as its factorization.

66414301633 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 37.

The spelling of 66414301633 in words is "sixty-six billion, four hundred fourteen million, three hundred one thousand, six hundred thirty-three".