166748523 has 8 divisors (see below), whose sum is σ = 222396048. Its totient is φ = 111133344.

The previous prime is 166748501. The next prime is 166748557. The reversal of 166748523 is 325847661.

166748523 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 not a de Polignac number, because 166748523 - 2¹⁰ = 166747499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (166758523) 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, 9265 + ... + 20477.

It is an arithmetic number, because the mean of its divisors is an integer number (27799506).

Almost surely, 2^166748523 is an apocalyptic number.

166748523 is a deficient number, since it is larger than the sum of its proper divisors (55647525).

166748523 is a wasteful number, since it uses less digits than its factorization.

166748523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16173.

The product of its digits is 241920, while the sum is 42.

The square root of 166748523 is about 12913.1143803499. The cubic root of 166748523 is about 550.4112879560.

The spelling of 166748523 in words is "one hundred sixty-six million, seven hundred forty-eight thousand, five hundred twenty-three".