15550510665000 has 80 divisors (see below), whose sum is σ = 48579795364320. Its totient is φ = 4146802840000.

The previous prime is 15550510664963. The next prime is 15550510665013. The reversal of 15550510665000 is 56601505551.

It is a self number, because there is not a number n which added to its sum of digits gives 15550510665000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 518335356 + ... + 518365355.

It is an arithmetic number, because the mean of its divisors is an integer number (607247442054).

Almost surely, 2^{15550510665000} is an apocalyptic number.

15550510665000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15550510665000 is an abundant number, since it is smaller than the sum of its proper divisors (33029284699320).

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

15550510665000 is a wasteful number, since it uses less digits than its factorization.

15550510665000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1036700740 (or 1036700721 counting only the distinct ones).

The product of its (nonzero) digits is 112500, while the sum is 39.

The spelling of 15550510665000 in words is "fifteen trillion, five hundred fifty billion, five hundred ten million, six hundred sixty-five thousand".