16971616542554 has 8 divisors (see below), whose sum is σ = 25478621674068. Its totient is φ = 8478742651200.

The previous prime is 16971616542541. The next prime is 16971616542557. The reversal of 16971616542554 is 45524561617961.

It can be written as a sum of positive squares in 2 ways, for example, as 16824164382529 + 147452160025 = 4101727^2 + 383995^2 .

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

It is not an unprimeable number, because it can be changed into a prime (16971616542557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3532807037 + ... + 3532811840.

Almost surely, 2^{16971616542554} is an apocalyptic number.

16971616542554 is a deficient number, since it is larger than the sum of its proper divisors (8507005131514).

16971616542554 is a wasteful number, since it uses less digits than its factorization.

16971616542554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7065620080.

The product of its digits is 54432000, while the sum is 62.

The spelling of 16971616542554 in words is "sixteen trillion, nine hundred seventy-one billion, six hundred sixteen million, five hundred forty-two thousand, five hundred fifty-four".