671065100072 has 32 divisors (see below), whose sum is σ = 1277747325120. Its totient is φ = 330338131200.

The previous prime is 671065100071. The next prime is 671065100087. The reversal of 671065100072 is 270001560176.

671065100072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (671065100071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 600197 + ... + 1304747.

It is an arithmetic number, because the mean of its divisors is an integer number (39929603910).

Almost surely, 2^671065100072 is an apocalyptic number.

It is an amenable number.

671065100072 is a deficient number, since it is larger than the sum of its proper divisors (606682225048).

671065100072 is a wasteful number, since it uses less digits than its factorization.

671065100072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706401 (or 706397 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 35.

The spelling of 671065100072 in words is "six hundred seventy-one billion, sixty-five million, one hundred thousand, seventy-two".