671134702505 has 16 divisors (see below), whose sum is σ = 807570063120. Its totient is φ = 535437361152.

The previous prime is 671134702439. The next prime is 671134702531. The reversal of 671134702505 is 505207431176.

It can be written as a sum of positive squares in 8 ways, for example, as 7791239824 + 663343462681 = 88268^2 + 814459^2 .

It is a cyclic number.

It is not a de Polignac number, because 671134702505 - 2²² = 671130508201 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2759681 + ... + 2993009.

It is an arithmetic number, because the mean of its divisors is an integer number (50473128945).

Almost surely, 2^671134702505 is an apocalyptic number.

It is an amenable number.

671134702505 is a deficient number, since it is larger than the sum of its proper divisors (136435360615).

671134702505 is a wasteful number, since it uses less digits than its factorization.

671134702505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234908.

The product of its (nonzero) digits is 176400, while the sum is 41.

The spelling of 671134702505 in words is "six hundred seventy-one billion, one hundred thirty-four million, seven hundred two thousand, five hundred five".