66670740007 has 8 divisors (see below), whose sum is σ = 66757123040. Its totient is φ = 66584414880.

The previous prime is 66670739977. The next prime is 66670740043. The reversal of 66670740007 is 70004707666.

66670740007 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 66670740007 - 2⁷ = 66670739879 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 (66670740077) 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, 2582053 + ... + 2607745.

It is an arithmetic number, because the mean of its divisors is an integer number (8344640380).

Almost surely, 2^66670740007 is an apocalyptic number.

66670740007 is a deficient number, since it is larger than the sum of its proper divisors (86383033).

66670740007 is a wasteful number, since it uses less digits than its factorization.

66670740007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28953.

The product of its (nonzero) digits is 296352, while the sum is 43.

The spelling of 66670740007 in words is "sixty-six billion, six hundred seventy million, seven hundred forty thousand, seven".