16571271551755 has 8 divisors (see below), whose sum is σ = 21055262677632. Its totient is φ = 12477192697728.

The previous prime is 16571271551719. The next prime is 16571271551771. The reversal of 16571271551755 is 55715517217561.

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 16571271551755 - 2⁹ = 16571271551243 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16571271551755.

It is an unprimeable number.

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, 97478067867 + ... + 97478068036.

It is an arithmetic number, because the mean of its divisors is an integer number (2631907834704).

Almost surely, 2^{16571271551755} is an apocalyptic number.

16571271551755 is a deficient number, since it is larger than the sum of its proper divisors (4483991125877).

16571271551755 is a wasteful number, since it uses less digits than its factorization.

16571271551755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194956135925.

The product of its digits is 12862500, while the sum is 58.

The spelling of 16571271551755 in words is "sixteen trillion, five hundred seventy-one billion, two hundred seventy-one million, five hundred fifty-one thousand, seven hundred fifty-five".