166748077 has 4 divisors (see below), whose sum is σ = 167018080. Its totient is φ = 166478076.

The previous prime is 166748069. The next prime is 166748083. The reversal of 166748077 is 770847661.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 166748077 - 2³ = 166748069 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 (166748177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134073 + ... + 135310.

It is an arithmetic number, because the mean of its divisors is an integer number (41754520).

Almost surely, 2^166748077 is an apocalyptic number.

It is an amenable number.

166748077 is a deficient number, since it is larger than the sum of its proper divisors (270003).

166748077 is an equidigital number, since it uses as much as digits as its factorization.

166748077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270002.

The product of its (nonzero) digits is 395136, while the sum is 46.

The square root of 166748077 is about 12913.0971110729. The cubic root of 166748077 is about 550.4107972297.

The spelling of 166748077 in words is "one hundred sixty-six million, seven hundred forty-eight thousand, seventy-seven".