166073761 has 8 divisors (see below), whose sum is σ = 191073600. Its totient is φ = 141392688.

The previous prime is 166073753. The next prime is 166073819. The reversal of 166073761 is 167370661.

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 166073761 - 2³ = 166073753 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 166073761.

It is not an unprimeable number, because it can be changed into a prime (166073711) 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, 78571 + ... + 80656.

It is an arithmetic number, because the mean of its divisors is an integer number (23884200).

Almost surely, 2^166073761 is an apocalyptic number.

It is an amenable number.

166073761 is a deficient number, since it is larger than the sum of its proper divisors (24999839).

166073761 is a wasteful number, since it uses less digits than its factorization.

166073761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159383.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 166073761 is about 12886.9608907609. The cubic root of 166073761 is about 549.6678556572.

The spelling of 166073761 in words is "one hundred sixty-six million, seventy-three thousand, seven hundred sixty-one".