16554721542146 has 32 divisors (see below), whose sum is σ = 26887501573632. Its totient is φ = 7614682908160.

The previous prime is 16554721542127. The next prime is 16554721542169. The reversal of 16554721542146 is 64124512745561.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5590526 + ... + 8022681.

It is an arithmetic number, because the mean of its divisors is an integer number (840234424176).

Almost surely, 2^{16554721542146} is an apocalyptic number.

16554721542146 is a deficient number, since it is larger than the sum of its proper divisors (10332780031486).

16554721542146 is a wasteful number, since it uses less digits than its factorization.

16554721542146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13614034.

The product of its digits is 8064000, while the sum is 53.

The spelling of 16554721542146 in words is "sixteen trillion, five hundred fifty-four billion, seven hundred twenty-one million, five hundred forty-two thousand, one hundred forty-six".