66676040344958 has 16 divisors (see below), whose sum is σ = 109114772889600. Its totient is φ = 30304922995800.

The previous prime is 66676040344943. The next prime is 66676040344973. The reversal of 66676040344958 is 85944304067666.

It is an interprime number because it is at equal distance from previous prime (66676040344943) and next prime (66676040344973).

It is a Curzon number.

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, 118115528 + ... + 118678683.

It is an arithmetic number, because the mean of its divisors is an integer number (6819673305600).

Almost surely, 2^{66676040344958} is an apocalyptic number.

66676040344958 is a deficient number, since it is larger than the sum of its proper divisors (42438732544642).

66676040344958 is a wasteful number, since it uses less digits than its factorization.

66676040344958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236807023.

The product of its (nonzero) digits is 627056640, while the sum is 68.

The spelling of 66676040344958 in words is "sixty-six trillion, six hundred seventy-six billion, forty million, three hundred forty-four thousand, nine hundred fifty-eight".