671336240025 has 96 divisors (see below), whose sum is σ = 1264689054720. Its totient is φ = 311049376000.

The previous prime is 671336240017. The next prime is 671336240039. The reversal of 671336240025 is 520042633176.

It is not a de Polignac number, because 671336240025 - 2³ = 671336240017 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 20685511 + ... + 20717939.

It is an arithmetic number, because the mean of its divisors is an integer number (13173844320).

Almost surely, 2^671336240025 is an apocalyptic number.

It is an amenable number.

671336240025 is a deficient number, since it is larger than the sum of its proper divisors (593352814695).

671336240025 is a wasteful number, since it uses less digits than its factorization.

671336240025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33567 (or 33562 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 39.

The spelling of 671336240025 in words is "six hundred seventy-one billion, three hundred thirty-six million, two hundred forty thousand, twenty-five".