671553540008 has 64 divisors (see below), whose sum is σ = 1358915564160. Its totient is φ = 309287091456.

The previous prime is 671553539999. The next prime is 671553540017. The reversal of 671553540008 is 800045355176.

It is an interprime number because it is at equal distance from previous prime (671553539999) and next prime (671553540017).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109495310 + ... + 109501442.

It is an arithmetic number, because the mean of its divisors is an integer number (21233055690).

Almost surely, 2^671553540008 is an apocalyptic number.

It is an amenable number.

671553540008 is an abundant number, since it is smaller than the sum of its proper divisors (687362024152).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

671553540008 is a wasteful number, since it uses less digits than its factorization.

671553540008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8226 (or 8222 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 44.

The spelling of 671553540008 in words is "six hundred seventy-one billion, five hundred fifty-three million, five hundred forty thousand, eight".