16555272317476 has 6 divisors (see below), whose sum is σ = 28971726555590. Its totient is φ = 8277636158736.

The previous prime is 16555272317447. The next prime is 16555272317483. The reversal of 16555272317476 is 67471327255561.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 12267366150400 + 4287906167076 = 3502480^2 + 2070726^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2069409039681 + ... + 2069409039688.

Almost surely, 2^{16555272317476} is an apocalyptic number.

It is an amenable number.

16555272317476 is a deficient number, since it is larger than the sum of its proper divisors (12416454238114).

16555272317476 is a wasteful number, since it uses less digits than its factorization.

16555272317476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4138818079373 (or 4138818079371 counting only the distinct ones).

The product of its digits is 74088000, while the sum is 61.

The spelling of 16555272317476 in words is "sixteen trillion, five hundred fifty-five billion, two hundred seventy-two million, three hundred seventeen thousand, four hundred seventy-six".