16555225044166 has 4 divisors (see below), whose sum is σ = 24832837566252. Its totient is φ = 8277612522082.

The previous prime is 16555225044107. The next prime is 16555225044203. The reversal of 16555225044166 is 66144052255561.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×16555225044166² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4138806261040 + ... + 4138806261043.

It is an arithmetic number, because the mean of its divisors is an integer number (6208209391563).

Almost surely, 2^{16555225044166} is an apocalyptic number.

16555225044166 is a deficient number, since it is larger than the sum of its proper divisors (8277612522086).

16555225044166 is an equidigital number, since it uses as much as digits as its factorization.

16555225044166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8277612522085.

The product of its (nonzero) digits is 8640000, while the sum is 52.

The spelling of 16555225044166 in words is "sixteen trillion, five hundred fifty-five billion, two hundred twenty-five million, forty-four thousand, one hundred sixty-six".