135020666 has 8 divisors (see below), whose sum is σ = 220942944. Its totient is φ = 61373020.

The previous prime is 135020653. The next prime is 135020687. The reversal of 135020666 is 666020531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3068630 + ... + 3068673.

It is an arithmetic number, because the mean of its divisors is an integer number (27617868).

Almost surely, 2^135020666 is an apocalyptic number.

135020666 is a deficient number, since it is larger than the sum of its proper divisors (85922278).

135020666 is a wasteful number, since it uses less digits than its factorization.

135020666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6137316.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 135020666 is about 11619.8393276327. The cubic root of 135020666 is about 513.0189592325.

The spelling of 135020666 in words is "one hundred thirty-five million, twenty thousand, six hundred sixty-six".