4297771666 has 12 divisors (see below), whose sum is σ = 6826479822. Its totient is φ = 2022300896.

The previous prime is 4297771661. The next prime is 4297771729. The reversal of 4297771666 is 6661777924.

It can be written as a sum of positive squares in only one way, i.e., 3160126225 + 1137645441 = 56215^2 + 33729^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4297771661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 376641 + ... + 387883.

Almost surely, 2^4297771666 is an apocalyptic number.

4297771666 is a deficient number, since it is larger than the sum of its proper divisors (2528708156).

4297771666 is an frugal number, since it uses more digits than its factorization.

4297771666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22505 (or 11262 counting only the distinct ones).

The product of its digits is 5334336, while the sum is 55.

The square root of 4297771666 is about 65557.3921537457. The cubic root of 4297771666 is about 1625.8523863843.

The spelling of 4297771666 in words is "four billion, two hundred ninety-seven million, seven hundred seventy-one thousand, six hundred sixty-six".