671501710065 has 16 divisors (see below), whose sum is σ = 1078396804800. Its totient is φ = 356802889152.

The previous prime is 671501710063. The next prime is 671501710157. The reversal of 671501710065 is 560017105176.

It is not a de Polignac number, because 671501710065 - 2¹ = 671501710063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (671501710063) 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, 83205595 + ... + 83213664.

It is an arithmetic number, because the mean of its divisors is an integer number (67399800300).

Almost surely, 2^671501710065 is an apocalyptic number.

It is an amenable number.

671501710065 is a deficient number, since it is larger than the sum of its proper divisors (406895094735).

671501710065 is a wasteful number, since it uses less digits than its factorization.

671501710065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166419536.

The product of its (nonzero) digits is 44100, while the sum is 39.

The spelling of 671501710065 in words is "six hundred seventy-one billion, five hundred one million, seven hundred ten thousand, sixty-five".