671333266120 has 64 divisors (see below), whose sum is σ = 1648433721600. Its totient is φ = 244029972480.

The previous prime is 671333266081. The next prime is 671333266187. The reversal of 671333266120 is 21662333176.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 899457 + ... + 1466863.

It is an arithmetic number, because the mean of its divisors is an integer number (25756776900).

Almost surely, 2^671333266120 is an apocalyptic number.

It is an amenable number.

671333266120 is an abundant number, since it is smaller than the sum of its proper divisors (977100455480).

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

671333266120 is a wasteful number, since it uses less digits than its factorization.

671333266120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570118 (or 570114 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 40.

Adding to 671333266120 its reverse (21662333176), we get a palindrome (692995599296).

The spelling of 671333266120 in words is "six hundred seventy-one billion, three hundred thirty-three million, two hundred sixty-six thousand, one hundred twenty".