671270461664 has 24 divisors (see below), whose sum is σ = 1441705878648. Its totient is φ = 305122936960.

The previous prime is 671270461657. The next prime is 671270461709. The reversal of 671270461664 is 466164072176.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 953508827 + ... + 953509530.

It is an arithmetic number, because the mean of its divisors is an integer number (60071078277).

Almost surely, 2^671270461664 is an apocalyptic number.

It is an amenable number.

671270461664 is an abundant number, since it is smaller than the sum of its proper divisors (770435416984).

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

671270461664 is a wasteful number, since it uses less digits than its factorization.

671270461664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1907018378 (or 1907018370 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 50.

The spelling of 671270461664 in words is "six hundred seventy-one billion, two hundred seventy million, four hundred sixty-one thousand, six hundred sixty-four".