12665577008 has 40 divisors (see below), whose sum is σ = 28135461120. Its totient is φ = 5410635840.

The previous prime is 12665576999. The next prime is 12665577019. The reversal of 12665577008 is 80077556621.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146978 + ... + 216641.

It is an arithmetic number, because the mean of its divisors is an integer number (703386528).

Almost surely, 2^12665577008 is an apocalyptic number.

It is an amenable number.

12665577008 is an abundant number, since it is smaller than the sum of its proper divisors (15469884112).

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

12665577008 is a wasteful number, since it uses less digits than its factorization.

12665577008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363945 (or 363939 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 47.

The spelling of 12665577008 in words is "twelve billion, six hundred sixty-five million, five hundred seventy-seven thousand, eight".