555406815216 has 80 divisors (see below), whose sum is σ = 1594770249600. Its totient is φ = 165129519360.

The previous prime is 555406815191. The next prime is 555406815233. The reversal of 555406815216 is 612518604555.

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 (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9895666 + ... + 9951633.

It is an arithmetic number, because the mean of its divisors is an integer number (19934628120).

Almost surely, 2^555406815216 is an apocalyptic number.

It is an amenable number.

555406815216 is an abundant number, since it is smaller than the sum of its proper divisors (1039363434384).

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

555406815216 is a wasteful number, since it uses less digits than its factorization.

555406815216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19847374 (or 19847368 counting only the distinct ones).

The product of its (nonzero) digits is 1440000, while the sum is 48.

The spelling of 555406815216 in words is "five hundred fifty-five billion, four hundred six million, eight hundred fifteen thousand, two hundred sixteen".