66236462377 has 2 divisors, whose sum is σ = 66236462378. Its totient is φ = 66236462376.

The previous prime is 66236462291. The next prime is 66236462389. The reversal of 66236462377 is 77326463266.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37876555161 + 28359907216 = 194619^2 + 168404^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66236462377 is a prime.

It is not a weakly prime, because it can be changed into another prime (66236412377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33118231188 + 33118231189.

It is an arithmetic number, because the mean of its divisors is an integer number (33118231189).

Almost surely, 2^66236462377 is an apocalyptic number.

It is an amenable number.

66236462377 is a deficient number, since it is larger than the sum of its proper divisors (1).

66236462377 is an equidigital number, since it uses as much as digits as its factorization.

66236462377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9144576, while the sum is 52.

The spelling of 66236462377 in words is "sixty-six billion, two hundred thirty-six million, four hundred sixty-two thousand, three hundred seventy-seven".