166749267 has 8 divisors (see below), whose sum is σ = 222414480. Its totient is φ = 111125120.

The previous prime is 166749257. The next prime is 166749347. The reversal of 166749267 is 762947661.

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 166749267 - 2⁶ = 166749203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (166749257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 967 + ... + 18287.

It is an arithmetic number, because the mean of its divisors is an integer number (27801810).

Almost surely, 2^166749267 is an apocalyptic number.

166749267 is a deficient number, since it is larger than the sum of its proper divisors (55665213).

166749267 is a wasteful number, since it uses less digits than its factorization.

166749267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20533.

The product of its digits is 762048, while the sum is 48.

The square root of 166749267 is about 12913.1431882404. The cubic root of 166749267 is about 550.4121065647.

The spelling of 166749267 in words is "one hundred sixty-six million, seven hundred forty-nine thousand, two hundred sixty-seven".