16006523907554 has 16 divisors (see below), whose sum is σ = 24042056870520. Its totient is φ = 7992505994880.

The previous prime is 16006523907461. The next prime is 16006523907571. The reversal of 16006523907554 is 45570932560061.

It can be written as a sum of positive squares in 4 ways, for example, as 3263930023225 + 12742593884329 = 1806635^2 + 3569677^2 .

It is a junction number, because it is equal to n+sod(n) for n = 16006523907496 and 16006523907505.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31722512 + ... + 32223140.

Almost surely, 2^{16006523907554} is an apocalyptic number.

16006523907554 is a deficient number, since it is larger than the sum of its proper divisors (8035532962966).

16006523907554 is a wasteful number, since it uses less digits than its factorization.

16006523907554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522085.

The product of its (nonzero) digits is 6804000, while the sum is 53.

The spelling of 16006523907554 in words is "sixteen trillion, six billion, five hundred twenty-three million, nine hundred seven thousand, five hundred fifty-four".