166016161550666 has 8 divisors (see below), whose sum is σ = 284599134086880. Its totient is φ = 71149783521708.

The previous prime is 166016161550653. The next prime is 166016161550683. The reversal of 166016161550666 is 666055161610661.

166016161550666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×166016161550666² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5929148626796 + ... + 5929148626823.

It is an arithmetic number, because the mean of its divisors is an integer number (35574891760860).

Almost surely, 2^{166016161550666} is an apocalyptic number.

166016161550666 is a deficient number, since it is larger than the sum of its proper divisors (118582972536214).

166016161550666 is a wasteful number, since it uses less digits than its factorization.

166016161550666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11858297253628.

The product of its (nonzero) digits is 6998400, while the sum is 56.

The spelling of 166016161550666 in words is "one hundred sixty-six trillion, sixteen billion, one hundred sixty-one million, five hundred fifty thousand, six hundred sixty-six".