66874002368842 has 8 divisors (see below), whose sum is σ = 106211650821156. Its totient is φ = 31470118761792.

The previous prime is 66874002368837. The next prime is 66874002368867. The reversal of 66874002368842 is 24886320047866.

66874002368842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 61409306015281 + 5464696353561 = 7836409^2 + 2337669^2 .

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 (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 983441211273 + ... + 983441211340.

Almost surely, 2^{66874002368842} is an apocalyptic number.

66874002368842 is a deficient number, since it is larger than the sum of its proper divisors (39337648452314).

66874002368842 is a wasteful number, since it uses less digits than its factorization.

66874002368842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1966882422632.

The product of its (nonzero) digits is 148635648, while the sum is 64.

The spelling of 66874002368842 in words is "sixty-six trillion, eight hundred seventy-four billion, two million, three hundred sixty-eight thousand, eight hundred forty-two".