166136545 has 8 divisors (see below), whose sum is σ = 199892160. Its totient is φ = 132557040.

The previous prime is 166136527. The next prime is 166136557. The reversal of 166136545 is 545631661.

166136545 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 not a de Polignac number, because 166136545 - 2⁷ = 166136417 is a prime.

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, 41941 + ... + 45730.

It is an arithmetic number, because the mean of its divisors is an integer number (24986520).

Almost surely, 2^166136545 is an apocalyptic number.

It is an amenable number.

166136545 is a deficient number, since it is larger than the sum of its proper divisors (33755615).

166136545 is an equidigital number, since it uses as much as digits as its factorization.

166136545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88055.

The product of its digits is 64800, while the sum is 37.

The square root of 166136545 is about 12889.3966111684. The cubic root of 166136545 is about 549.7371140367.

The spelling of 166136545 in words is "one hundred sixty-six million, one hundred thirty-six thousand, five hundred forty-five".