66102018338 has 8 divisors (see below), whose sum is σ = 99228090540. Its totient is φ = 33025988160.

The previous prime is 66102018299. The next prime is 66102018349. The reversal of 66102018338 is 83381020166.

It can be written as a sum of positive squares in 2 ways, for example, as 53427086449 + 12674931889 = 231143^2 + 112583^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 12507203 + ... + 12512486.

Almost surely, 2^66102018338 is an apocalyptic number.

66102018338 is a deficient number, since it is larger than the sum of its proper divisors (33126072202).

66102018338 is a wasteful number, since it uses less digits than its factorization.

66102018338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25021012.

The product of its (nonzero) digits is 41472, while the sum is 38.

The spelling of 66102018338 in words is "sixty-six billion, one hundred two million, eighteen thousand, three hundred thirty-eight".