166248629 has 4 divisors (see below), whose sum is σ = 171611520. Its totient is φ = 160885740.

The previous prime is 166248617. The next prime is 166248631. The reversal of 166248629 is 926842661.

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, and also an emirpimes, since its reverse is a distinct semiprime: 926842661 = 23 ⋅40297507.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166248629 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 166248629.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166248679) 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 3 ways as a sum of consecutive naturals, for example, 2681399 + ... + 2681460.

It is an arithmetic number, because the mean of its divisors is an integer number (42902880).

Almost surely, 2^166248629 is an apocalyptic number.

It is an amenable number.

166248629 is a deficient number, since it is larger than the sum of its proper divisors (5362891).

166248629 is an equidigital number, since it uses as much as digits as its factorization.

166248629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5362890.

The product of its digits is 248832, while the sum is 44.

The square root of 166248629 is about 12893.7437930184. The cubic root of 166248629 is about 549.8607129380.

The spelling of 166248629 in words is "one hundred sixty-six million, two hundred forty-eight thousand, six hundred twenty-nine".