166337081 has 8 divisors (see below), whose sum is σ = 176161344. Its totient is φ = 156728880.

The previous prime is 166337051. The next prime is 166337117. The reversal of 166337081 is 180733661.

166337081 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 cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166337081 is a prime.

It is a super-2 number, since 2×166337081² = 55336049031201122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166337021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52430 + ... + 55511.

It is an arithmetic number, because the mean of its divisors is an integer number (22020168).

Almost surely, 2^166337081 is an apocalyptic number.

It is an amenable number.

166337081 is a deficient number, since it is larger than the sum of its proper divisors (9824263).

166337081 is a wasteful number, since it uses less digits than its factorization.

166337081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108031.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 166337081 is about 12897.1733724875. The cubic root of 166337081 is about 549.9582128032.

The spelling of 166337081 in words is "one hundred sixty-six million, three hundred thirty-seven thousand, eighty-one".