166124633 has 4 divisors (see below), whose sum is σ = 166246308. Its totient is φ = 166002960.

The previous prime is 166124591. The next prime is 166124639. The reversal of 166124633 is 336421661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 336421661 = 6823 ⋅49307.

It can be written as a sum of positive squares in 2 ways, for example, as 104611984 + 61512649 = 10228^2 + 7843^2 .

It is a cyclic number.

It is not a de Polignac number, because 166124633 - 2¹⁶ = 166059097 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 166124633.

It is not an unprimeable number, because it can be changed into a prime (166124639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58766 + ... + 61527.

It is an arithmetic number, because the mean of its divisors is an integer number (41561577).

Almost surely, 2^166124633 is an apocalyptic number.

It is an amenable number.

166124633 is a deficient number, since it is larger than the sum of its proper divisors (121675).

166124633 is a wasteful number, since it uses less digits than its factorization.

166124633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121674.

The product of its digits is 15552, while the sum is 32.

The square root of 166124633 is about 12888.9345176395. The cubic root of 166124633 is about 549.7239749949.

The spelling of 166124633 in words is "one hundred sixty-six million, one hundred twenty-four thousand, six hundred thirty-three".