166002541 has 8 divisors (see below), whose sum is σ = 167030784. Its totient is φ = 164978160.

The previous prime is 166002527. The next prime is 166002547. The reversal of 166002541 is 145200661.

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 166002541 - 2⁹ = 166002029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166002547) 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, 139971 + ... + 141151.

It is an arithmetic number, because the mean of its divisors is an integer number (20878848).

Almost surely, 2^166002541 is an apocalyptic number.

It is an amenable number.

166002541 is a deficient number, since it is larger than the sum of its proper divisors (1028243).

166002541 is a wasteful number, since it uses less digits than its factorization.

166002541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1931.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 166002541 is about 12884.1973362721. The cubic root of 166002541 is about 549.5892702105.

The spelling of 166002541 in words is "one hundred sixty-six million, two thousand, five hundred forty-one".