66666362 has 36 divisors (see below), whose sum is σ = 118898010. Its totient is φ = 27950832.

The previous prime is 66666361. The next prime is 66666371. The reversal of 66666362 is 26366666.

It can be written as a sum of positive squares in only one way, i.e., 51681721 + 14984641 = 7189^2 + 3871^2 .

It is not an unprimeable number, because it can be changed into a prime (66666361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 611564 + ... + 611672.

Almost surely, 2^66666362 is an apocalyptic number.

66666362 is a deficient number, since it is larger than the sum of its proper divisors (52231648).

66666362 is a wasteful number, since it uses less digits than its factorization.

66666362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283 (or 197 counting only the distinct ones).

The product of its digits is 279936, while the sum is 41.

The square root of 66666362 is about 8164.9471523091. The cubic root of 66666362 is about 405.4795153559.

The spelling of 66666362 in words is "sixty-six million, six hundred sixty-six thousand, three hundred sixty-two".