166751441 has 8 divisors (see below), whose sum is σ = 170480640. Its totient is φ = 163029888.

The previous prime is 166751437. The next prime is 166751443. The reversal of 166751441 is 144157661.

166751441 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 a cyclic number.

It is not a de Polignac number, because 166751441 - 2² = 166751437 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166751443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81665 + ... + 83681.

It is an arithmetic number, because the mean of its divisors is an integer number (21310080).

Almost surely, 2^166751441 is an apocalyptic number.

It is an amenable number.

166751441 is a deficient number, since it is larger than the sum of its proper divisors (3729199).

166751441 is a wasteful number, since it uses less digits than its factorization.

166751441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3823.

The product of its digits is 20160, while the sum is 35.

The square root of 166751441 is about 12913.2273657672. The cubic root of 166751441 is about 550.4144985607.

The spelling of 166751441 in words is "one hundred sixty-six million, seven hundred fifty-one thousand, four hundred forty-one".