16554547500427 has 2 divisors, whose sum is σ = 16554547500428. Its totient is φ = 16554547500426.

The previous prime is 16554547500343. The next prime is 16554547500437. The reversal of 16554547500427 is 72400574545561.

It is a strong prime.

It is an emirp because it is prime and its reverse (72400574545561) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16554547500427 - 2¹⁵ = 16554547467659 is a prime.

It is not a weakly prime, because it can be changed into another prime (16554547500437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8277273750213 + 8277273750214.

It is an arithmetic number, because the mean of its divisors is an integer number (8277273750214).

Almost surely, 2^{16554547500427} is an apocalyptic number.

16554547500427 is a deficient number, since it is larger than the sum of its proper divisors (1).

16554547500427 is an equidigital number, since it uses as much as digits as its factorization.

16554547500427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23520000, while the sum is 55.

The spelling of 16554547500427 in words is "sixteen trillion, five hundred fifty-four billion, five hundred forty-seven million, five hundred thousand, four hundred twenty-seven".