551560511616 has 64 divisors (see below), whose sum is σ = 1465289935200. Its totient is φ = 183827486720.

The previous prime is 551560511599. The next prime is 551560511617. The reversal of 551560511616 is 616115065155.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (551560511617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2717140 + ... + 2913068.

Almost surely, 2^551560511616 is an apocalyptic number.

It is an amenable number.

551560511616 is an abundant number, since it is smaller than the sum of its proper divisors (913729423584).

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

551560511616 is a wasteful number, since it uses less digits than its factorization.

551560511616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203277 (or 203265 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 42.

The spelling of 551560511616 in words is "five hundred fifty-one billion, five hundred sixty million, five hundred eleven thousand, six hundred sixteen".