135351666 has 24 divisors (see below), whose sum is σ = 296289084. Its totient is φ = 44651520.

The previous prime is 135351653. The next prime is 135351677. The reversal of 135351666 is 666153531.

It can be written as a sum of positive squares in 2 ways, for example, as 126225225 + 9126441 = 11235^2 + 3021^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 135351666.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 37015 + ... + 40506.

Almost surely, 2^135351666 is an apocalyptic number.

135351666 is an abundant number, since it is smaller than the sum of its proper divisors (160937418).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135351666 is a wasteful number, since it uses less digits than its factorization.

135351666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77626 (or 77623 counting only the distinct ones).

The product of its digits is 48600, while the sum is 36.

The square root of 135351666 is about 11634.0734912583. The cubic root of 135351666 is about 513.4378351179.

The spelling of 135351666 in words is "one hundred thirty-five million, three hundred fifty-one thousand, six hundred sixty-six".