671460216564 has 48 divisors (see below), whose sum is σ = 1571431272768. Its totient is φ = 223150169088.

The previous prime is 671460216563. The next prime is 671460216569. The reversal of 671460216564 is 465612064176.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671460216563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45898219 + ... + 45912845.

It is an arithmetic number, because the mean of its divisors is an integer number (32738151516).

Almost surely, 2^671460216564 is an apocalyptic number.

It is an amenable number.

671460216564 is an abundant number, since it is smaller than the sum of its proper divisors (899971056204).

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

671460216564 is a wasteful number, since it uses less digits than its factorization.

671460216564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25824 (or 25822 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 48.

The spelling of 671460216564 in words is "six hundred seventy-one billion, four hundred sixty million, two hundred sixteen thousand, five hundred sixty-four".