66700407007 has 8 divisors (see below), whose sum is σ = 73048686480. Its totient is φ = 60526053120.

The previous prime is 66700406999. The next prime is 66700407019. The reversal of 66700407007 is 70070400766.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 66700407007 - 2³ = 66700406999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66700407107) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 43480594 + ... + 43482127.

It is an arithmetic number, because the mean of its divisors is an integer number (9131085810).

Almost surely, 2^66700407007 is an apocalyptic number.

66700407007 is a deficient number, since it is larger than the sum of its proper divisors (6348279473).

66700407007 is a wasteful number, since it uses less digits than its factorization.

66700407007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86962793.

The product of its (nonzero) digits is 49392, while the sum is 37.

The spelling of 66700407007 in words is "sixty-six billion, seven hundred million, four hundred seven thousand, seven".