667273372766 has 48 divisors (see below), whose sum is σ = 1367877112560. Its totient is φ = 239978430720.

The previous prime is 667273372721. The next prime is 667273372793.

667273372766 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 667273372699 and 667273372708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23793371 + ... + 23821398.

It is an arithmetic number, because the mean of its divisors is an integer number (28497439845).

Almost surely, 2^667273372766 is an apocalyptic number.

667273372766 is an abundant number, since it is smaller than the sum of its proper divisors (700603739794).

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

667273372766 is a wasteful number, since it uses less digits than its factorization.

667273372766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47614809 (or 47614802 counting only the distinct ones).

The product of its digits is 112021056, while the sum is 62.

The spelling of 667273372766 in words is "six hundred sixty-seven billion, two hundred seventy-three million, three hundred seventy-two thousand, seven hundred sixty-six".