166510016611 has 8 divisors (see below), whose sum is σ = 168414162944. Its totient is φ = 164615136840.

The previous prime is 166510016587. The next prime is 166510016623. The reversal of 166510016611 is 116610015661.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166510016611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166510014611) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 2280495 + ... + 2352376.

It is an arithmetic number, because the mean of its divisors is an integer number (21051770368).

Almost surely, 2^166510016611 is an apocalyptic number.

166510016611 is a deficient number, since it is larger than the sum of its proper divisors (1904146333).

166510016611 is a wasteful number, since it uses less digits than its factorization.

166510016611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4633281.

The product of its (nonzero) digits is 6480, while the sum is 34.

The spelling of 166510016611 in words is "one hundred sixty-six billion, five hundred ten million, sixteen thousand, six hundred eleven".