667235180667 has 8 divisors (see below), whose sum is σ = 970523899200. Its totient is φ = 404384957960.

The previous prime is 667235180639. The next prime is 667235180669. The reversal of 667235180667 is 766081532766.

667235180667 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 667235180667 - 2⁶ = 667235180603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (667235180669) 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, 10109623917 + ... + 10109623982.

It is an arithmetic number, because the mean of its divisors is an integer number (121315487400).

Almost surely, 2^667235180667 is an apocalyptic number.

667235180667 is a deficient number, since it is larger than the sum of its proper divisors (303288718533).

667235180667 is a wasteful number, since it uses less digits than its factorization.

667235180667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20219247913.

The product of its (nonzero) digits is 15240960, while the sum is 57.

The spelling of 667235180667 in words is "six hundred sixty-seven billion, two hundred thirty-five million, one hundred eighty thousand, six hundred sixty-seven".