6665020135 has 8 divisors (see below), whose sum is σ = 7998873696. Its totient is φ = 5331449760.

The previous prime is 6665020129. The next prime is 6665020183. The reversal of 6665020135 is 5310205666.

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

It is a de Polignac number, because none of the positive numbers 2^k-6665020135 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6665020135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15019 + ... + 116428.

It is an arithmetic number, because the mean of its divisors is an integer number (999859212).

Almost surely, 2^6665020135 is an apocalyptic number.

6665020135 is a deficient number, since it is larger than the sum of its proper divisors (1333853561).

6665020135 is a wasteful number, since it uses less digits than its factorization.

6665020135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141593.

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 6665020135 is about 81639.5745640556. The cubic root of 6665020135 is about 1881.9171004421.

The spelling of 6665020135 in words is "six billion, six hundred sixty-five million, twenty thousand, one hundred thirty-five".