66700400674001 has 8 divisors (see below), whose sum is σ = 66958383067200. Its totient is φ = 66442492544400.

The previous prime is 66700400673943. The next prime is 66700400674031. The reversal of 66700400674001 is 10047600400766.

It is a happy number.

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 66700400674001 - 2¹⁰ = 66700400672977 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 66700400674001.

It is not an unprimeable number, because it can be changed into a prime (66700400674031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16765775 + ... + 20359076.

It is an arithmetic number, because the mean of its divisors is an integer number (8369797883400).

Almost surely, 2^{66700400674001} is an apocalyptic number.

It is an amenable number.

66700400674001 is a deficient number, since it is larger than the sum of its proper divisors (257982393199).

66700400674001 is a wasteful number, since it uses less digits than its factorization.

66700400674001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37131799.

The product of its (nonzero) digits is 169344, while the sum is 41.

The spelling of 66700400674001 in words is "sixty-six trillion, seven hundred billion, four hundred million, six hundred seventy-four thousand, one".