166036505 has 8 divisors (see below), whose sum is σ = 199338432. Its totient is φ = 132766128.

The previous prime is 166036487. The next prime is 166036523. The reversal of 166036505 is 505630661.

It is an interprime number because it is at equal distance from previous prime (166036487) and next prime (166036523).

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 166036505 - 2⁶ = 166036441 is a prime.

It is a Duffinian number.

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, 5882 + ... + 19148.

It is an arithmetic number, because the mean of its divisors is an integer number (24917304).

Almost surely, 2^166036505 is an apocalyptic number.

It is an amenable number.

166036505 is a deficient number, since it is larger than the sum of its proper divisors (33301927).

166036505 is a wasteful number, since it uses less digits than its factorization.

166036505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15775.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 166036505 is about 12885.5153175960. The cubic root of 166036505 is about 549.6267495104.

The spelling of 166036505 in words is "one hundred sixty-six million, thirty-six thousand, five hundred five".