551556533712 has 80 divisors (see below), whose sum is σ = 1499974709760. Its totient is φ = 174160884096.

The previous prime is 551556533707. The next prime is 551556533767. The reversal of 551556533712 is 217335655155.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 16387333 + ... + 16420955.

It is an arithmetic number, because the mean of its divisors is an integer number (18749683872).

Almost surely, 2^551556533712 is an apocalyptic number.

It is an amenable number.

551556533712 is an abundant number, since it is smaller than the sum of its proper divisors (948418176048).

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

551556533712 is a wasteful number, since it uses less digits than its factorization.

551556533712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51640 (or 51634 counting only the distinct ones).

The product of its digits is 2362500, while the sum is 48.

The spelling of 551556533712 in words is "five hundred fifty-one billion, five hundred fifty-six million, five hundred thirty-three thousand, seven hundred twelve".