6660138035 has 8 divisors (see below), whose sum is σ = 7997652240. Its totient is φ = 5324452704.

The previous prime is 6660138019. The next prime is 6660138091. The reversal of 6660138035 is 5308310666.

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 6660138035 - 2⁴ = 6660138019 is a prime.

It is a super-2 number, since 2×6660138035² = 88714877290507322450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6660138035.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 449192 + ... + 463781.

It is an arithmetic number, because the mean of its divisors is an integer number (999706530).

Almost surely, 2^6660138035 is an apocalyptic number.

6660138035 is a deficient number, since it is larger than the sum of its proper divisors (1337514205).

6660138035 is a wasteful number, since it uses less digits than its factorization.

6660138035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914437.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 6660138035 is about 81609.6687592837. The cubic root of 6660138035 is about 1881.4574893421.

The spelling of 6660138035 in words is "six billion, six hundred sixty million, one hundred thirty-eight thousand, thirty-five".