671158005135 has 32 divisors (see below), whose sum is σ = 1138405897152. Its totient is φ = 336484546560.

The previous prime is 671158005083. The next prime is 671158005139. The reversal of 671158005135 is 531500851176.

It is a happy number.

It is not a de Polignac number, because 671158005135 - 2¹⁷ = 671157874063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671158005139) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1393564 + ... + 1812273.

It is an arithmetic number, because the mean of its divisors is an integer number (35575184286).

Almost surely, 2^671158005135 is an apocalyptic number.

671158005135 is a deficient number, since it is larger than the sum of its proper divisors (467247892017).

671158005135 is a wasteful number, since it uses less digits than its factorization.

671158005135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3206683.

The product of its (nonzero) digits is 126000, while the sum is 42.

The spelling of 671158005135 in words is "six hundred seventy-one billion, one hundred fifty-eight million, five thousand, one hundred thirty-five".