166648944 has 120 divisors (see below), whose sum is σ = 540937600. Its totient is φ = 43274880.

The previous prime is 166648939. The next prime is 166648949. The reversal of 166648944 is 449846661.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (166648939) and next prime (166648949).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 166648893 and 166648902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166648949) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38607 + ... + 42705.

Almost surely, 2^166648944 is an apocalyptic number.

166648944 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166648944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (270468800).

166648944 is an abundant number, since it is smaller than the sum of its proper divisors (374288656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166648944 is a wasteful number, since it uses less digits than its factorization.

166648944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4139 (or 4122 counting only the distinct ones).

The product of its digits is 995328, while the sum is 48.

The square root of 166648944 is about 12909.2580731814. The cubic root of 166648944 is about 550.3017011390.

The spelling of 166648944 in words is "one hundred sixty-six million, six hundred forty-eight thousand, nine hundred forty-four".