166036541 has 4 divisors (see below), whose sum is σ = 181130784. Its totient is φ = 150942300.

The previous prime is 166036523. The next prime is 166036543. The reversal of 166036541 is 145630661.

166036541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 166036541 - 2¹⁸ = 165774397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 166036498 and 166036507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166036543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7547105 + ... + 7547126.

It is an arithmetic number, because the mean of its divisors is an integer number (45282696).

Almost surely, 2^166036541 is an apocalyptic number.

166036541 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

166036541 is a deficient number, since it is larger than the sum of its proper divisors (15094243).

166036541 is a wasteful number, since it uses less digits than its factorization.

166036541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15094242.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 166036541 is about 12885.5167145132. The cubic root of 166036541 is about 549.6267892337.

The spelling of 166036541 in words is "one hundred sixty-six million, thirty-six thousand, five hundred forty-one".