667377202436641 has 8 divisors (see below), whose sum is σ = 707284762859520. Its totient is φ = 627541872894528.

The previous prime is 667377202436587. The next prime is 667377202436669. The reversal of 667377202436641 is 146634202773766.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-667377202436641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (667377202436141) 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, 18057701161 + ... + 18057738118.

It is an arithmetic number, because the mean of its divisors is an integer number (88410595357440).

Almost surely, 2^{667377202436641} is an apocalyptic number.

It is an amenable number.

667377202436641 is a deficient number, since it is larger than the sum of its proper divisors (39907560422879).

667377202436641 is a wasteful number, since it uses less digits than its factorization.

667377202436641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36115440383.

The product of its (nonzero) digits is 256048128, while the sum is 64.

The spelling of 667377202436641 in words is "six hundred sixty-seven trillion, three hundred seventy-seven billion, two hundred two million, four hundred thirty-six thousand, six hundred forty-one".