671495169471 has 16 divisors (see below), whose sum is σ = 1024110591744. Its totient is φ = 383381578944.

The previous prime is 671495169439. The next prime is 671495169491. The reversal of 671495169471 is 174961594176.

It is a happy number.

It is not a de Polignac number, because 671495169471 - 2⁵ = 671495169439 is a prime.

It is a super-3 number, since 3×671495169471³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671495169421) 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, 13722766 + ... + 13771611.

It is an arithmetic number, because the mean of its divisors is an integer number (64006911984).

Almost surely, 2^671495169471 is an apocalyptic number.

671495169471 is a deficient number, since it is larger than the sum of its proper divisors (352615422273).

671495169471 is a wasteful number, since it uses less digits than its factorization.

671495169471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27495550.

The product of its digits is 11430720, while the sum is 60.

The spelling of 671495169471 in words is "six hundred seventy-one billion, four hundred ninety-five million, one hundred sixty-nine thousand, four hundred seventy-one".