671701706015 has 8 divisors (see below), whose sum is σ = 806055306288. Its totient is φ = 537352525440.

The previous prime is 671701705991. The next prime is 671701706017. The reversal of 671701706015 is 510607107176.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 671701706015 - 2¹⁸ = 671701443871 is a prime.

It is a super-2 number, since 2×671701706015² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671701706017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 760826 + ... + 1386455.

It is an arithmetic number, because the mean of its divisors is an integer number (100756913286).

Almost surely, 2^671701706015 is an apocalyptic number.

671701706015 is a deficient number, since it is larger than the sum of its proper divisors (134353600273).

671701706015 is a wasteful number, since it uses less digits than its factorization.

671701706015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2209849.

The product of its (nonzero) digits is 61740, while the sum is 41.

The spelling of 671701706015 in words is "six hundred seventy-one billion, seven hundred one million, seven hundred six thousand, fifteen".