66667100800007 has 8 divisors (see below), whose sum is σ = 66747354587136. Its totient is φ = 66586853966872.

The previous prime is 66667100799997. The next prime is 66667100800009. The reversal of 66667100800007 is 70000800176666.

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 66667100800007 - 2⁴ = 66667100799991 is a prime.

It is a super-2 number, since 2×66667100800007² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66667100800009) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 17575838 + ... + 21029604.

It is an arithmetic number, because the mean of its divisors is an integer number (8343419323392).

Almost surely, 2^{66667100800007} is an apocalyptic number.

66667100800007 is a deficient number, since it is larger than the sum of its proper divisors (80253787129).

66667100800007 is a wasteful number, since it uses less digits than its factorization.

66667100800007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3476997.

The product of its (nonzero) digits is 508032, while the sum is 47.

The spelling of 66667100800007 in words is "sixty-six trillion, six hundred sixty-seven billion, one hundred million, eight hundred thousand, seven".