672666255444 has 12 divisors (see below), whose sum is σ = 1569554596064. Its totient is φ = 224222085144.

The previous prime is 672666255439. The next prime is 672666255449. The reversal of 672666255444 is 444552666276.

It is an interprime number because it is at equal distance from previous prime (672666255439) and next prime (672666255449).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672666255449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28027760632 + ... + 28027760655.

Almost surely, 2^672666255444 is an apocalyptic number.

It is an amenable number.

672666255444 is an abundant number, since it is smaller than the sum of its proper divisors (896888340620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

672666255444 is a wasteful number, since it uses less digits than its factorization.

672666255444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56055521294 (or 56055521292 counting only the distinct ones).

The product of its digits is 58060800, while the sum is 57.

The spelling of 672666255444 in words is "six hundred seventy-two billion, six hundred sixty-six million, two hundred fifty-five thousand, four hundred forty-four".