16555224507375 has 32 divisors (see below), whose sum is σ = 27566470294272. Its totient is φ = 8823498996000.

The previous prime is 16555224507361. The next prime is 16555224507379. The reversal of 16555224507375 is 57370542255561.

It is a happy number.

It is not a de Polignac number, because 16555224507375 - 2⁸ = 16555224507119 is a prime.

It is a super-2 number, since 2×16555224507375² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16555224507379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14328321 + ... + 15440570.

It is an arithmetic number, because the mean of its divisors is an integer number (861452196696).

Almost surely, 2^{16555224507375} is an apocalyptic number.

16555224507375 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16555224507375 is a deficient number, since it is larger than the sum of its proper divisors (11011245786897).

16555224507375 is a wasteful number, since it uses less digits than its factorization.

16555224507375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29770392 (or 29770382 counting only the distinct ones).

The product of its (nonzero) digits is 44100000, while the sum is 57.

The spelling of 16555224507375 in words is "sixteen trillion, five hundred fifty-five billion, two hundred twenty-four million, five hundred seven thousand, three hundred seventy-five".