667441614677 has 16 divisors (see below), whose sum is σ = 691784171520. Its totient is φ = 643276695600.

The previous prime is 667441614643. The next prime is 667441614691. The reversal of 667441614677 is 776416144766.

It is a cyclic number.

It is not a de Polignac number, because 667441614677 - 2⁶ = 667441614613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667441614577) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23668328 + ... + 23696510.

It is an arithmetic number, because the mean of its divisors is an integer number (43236510720).

Almost surely, 2^667441614677 is an apocalyptic number.

It is an amenable number.

667441614677 is a deficient number, since it is larger than the sum of its proper divisors (24342556843).

667441614677 is a wasteful number, since it uses less digits than its factorization.

667441614677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31304.

The product of its digits is 28449792, while the sum is 59.

The spelling of 667441614677 in words is "six hundred sixty-seven billion, four hundred forty-one million, six hundred fourteen thousand, six hundred seventy-seven".