16556450382377 has 8 divisors (see below), whose sum is σ = 17276458313664. Its totient is φ = 15836455973008.

The previous prime is 16556450382371. The next prime is 16556450382401. The reversal of 16556450382377 is 77328305465561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16556450382377 - 2¹⁴ = 16556450365993 is a prime.

It is a super-2 number, since 2×16556450382377² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16556450382371) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 837698 + ... + 5815035.

It is an arithmetic number, because the mean of its divisors is an integer number (2159557289208).

Almost surely, 2^{16556450382377} is an apocalyptic number.

It is an amenable number.

16556450382377 is a deficient number, since it is larger than the sum of its proper divisors (720007931287).

16556450382377 is a wasteful number, since it uses less digits than its factorization.

16556450382377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6760959.

The product of its (nonzero) digits is 127008000, while the sum is 62.

The spelling of 16556450382377 in words is "sixteen trillion, five hundred fifty-six billion, four hundred fifty million, three hundred eighty-two thousand, three hundred seventy-seven".