4000066700667 has 4 divisors (see below), whose sum is σ = 5333422267560. Its totient is φ = 2666711133776.

The previous prime is 4000066700659. The next prime is 4000066700717. The reversal of 4000066700667 is 7660076600004.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4000066700667 - 2³ = 4000066700659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4000066700167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 666677783442 + ... + 666677783447.

It is an arithmetic number, because the mean of its divisors is an integer number (1333355566890).

Almost surely, 2^{4000066700667} is an apocalyptic number.

4000066700667 is a deficient number, since it is larger than the sum of its proper divisors (1333355566893).

4000066700667 is a wasteful number, since it uses less digits than its factorization.

4000066700667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333355566892.

The product of its (nonzero) digits is 254016, while the sum is 42.

The spelling of 4000066700667 in words is "four trillion, sixty-six million, seven hundred thousand, six hundred sixty-seven".