667441457377 has 8 divisors (see below), whose sum is σ = 696567089664. Its totient is φ = 638324695008.

The previous prime is 667441457357. The next prime is 667441457413. The reversal of 667441457377 is 773754144766.

667441457377 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 667441457377 - 2¹⁵ = 667441424609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (667441457357) 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, 2063473 + ... + 2364910.

It is an arithmetic number, because the mean of its divisors is an integer number (87070886208).

Almost surely, 2^667441457377 is an apocalyptic number.

It is an amenable number.

667441457377 is a deficient number, since it is larger than the sum of its proper divisors (29125632287).

667441457377 is a wasteful number, since it uses less digits than its factorization.

667441457377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4434959.

The product of its digits is 82978560, while the sum is 61.

The spelling of 667441457377 in words is "six hundred sixty-seven billion, four hundred forty-one million, four hundred fifty-seven thousand, three hundred seventy-seven".