669770135 has 8 divisors (see below), whose sum is σ = 805155120. Its totient is φ = 534862144.

The previous prime is 669770117. The next prime is 669770141. The reversal of 669770135 is 531077966.

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

It is a cyclic number.

It is not a de Polignac number, because 669770135 - 2⁶ = 669770071 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 116150 + ... + 121779.

It is an arithmetic number, because the mean of its divisors is an integer number (100644390).

Almost surely, 2^669770135 is an apocalyptic number.

669770135 is a deficient number, since it is larger than the sum of its proper divisors (135384985).

669770135 is a wasteful number, since it uses less digits than its factorization.

669770135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238497.

The product of its (nonzero) digits is 238140, while the sum is 44.

The square root of 669770135 is about 25879.9176003325. The cubic root of 669770135 is about 874.9339313380.

The spelling of 669770135 in words is "six hundred sixty-nine million, seven hundred seventy thousand, one hundred thirty-five".