166089737 has 8 divisors (see below), whose sum is σ = 181444800. Its totient is φ = 150777360.

The previous prime is 166089733. The next prime is 166089751. The reversal of 166089737 is 737980661.

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

It is a cyclic number.

It is not a de Polignac number, because 166089737 - 2² = 166089733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 166089691 and 166089700.

It is not an unprimeable number, because it can be changed into a prime (166089733) 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, 2237 + ... + 18362.

It is an arithmetic number, because the mean of its divisors is an integer number (22680600).

Almost surely, 2^166089737 is an apocalyptic number.

It is an amenable number.

166089737 is a deficient number, since it is larger than the sum of its proper divisors (15355063).

166089737 is a wasteful number, since it uses less digits than its factorization.

166089737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21343.

The product of its (nonzero) digits is 381024, while the sum is 47.

The square root of 166089737 is about 12887.5807271962. The cubic root of 166089737 is about 549.6854807815.

The spelling of 166089737 in words is "one hundred sixty-six million, eighty-nine thousand, seven hundred thirty-seven".