166854061 has 8 divisors (see below), whose sum is σ = 186256224. Its totient is φ = 148157520.

The previous prime is 166854043. The next prime is 166854073. The reversal of 166854061 is 160458661.

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-166854061 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 166854061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166854041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175906 + ... + 176851.

It is an arithmetic number, because the mean of its divisors is an integer number (23282028).

Almost surely, 2^166854061 is an apocalyptic number.

166854061 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

166854061 is a deficient number, since it is larger than the sum of its proper divisors (19402163).

166854061 is a wasteful number, since it uses less digits than its factorization.

166854061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352811.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 166854061 is about 12917.2001997337. The cubic root of 166854061 is about 550.5273850475.

The spelling of 166854061 in words is "one hundred sixty-six million, eight hundred fifty-four thousand, sixty-one".