166437888 has 88 divisors (see below), whose sum is σ = 469860192. Its totient is φ = 52199424.

The previous prime is 166437881. The next prime is 166437889. The reversal of 166437888 is 888734661.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 166437888.

It is not an unprimeable number, because it can be changed into a prime (166437881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50631 + ... + 53817.

Almost surely, 2^166437888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166437888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (234930096).

166437888 is an abundant number, since it is smaller than the sum of its proper divisors (303422304).

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

166437888 is a wasteful number, since it uses less digits than its factorization.

166437888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3227 (or 3209 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 51.

The square root of 166437888 is about 12901.0808849491. The cubic root of 166437888 is about 550.0692893421.

It can be divided in two parts, 16643 and 7888, that added together give a triangular number (24531 = T₂₂₁).

The spelling of 166437888 in words is "one hundred sixty-six million, four hundred thirty-seven thousand, eight hundred eighty-eight".