667108265644 has 12 divisors (see below), whose sum is σ = 1169045301424. Its totient is φ = 333095322384.

The previous prime is 667108265627. The next prime is 667108265687. The reversal of 667108265644 is 446562801766.

It is a happy number.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114699339 + ... + 114705154.

Almost surely, 2^667108265644 is an apocalyptic number.

It is an amenable number.

667108265644 is a deficient number, since it is larger than the sum of its proper divisors (501937035780).

667108265644 is a wasteful number, since it uses less digits than its factorization.

667108265644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229405224 (or 229405222 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 55.

The spelling of 667108265644 in words is "six hundred sixty-seven billion, one hundred eight million, two hundred sixty-five thousand, six hundred forty-four".