166231044 has 72 divisors (see below), whose sum is σ = 481860288. Its totient is φ = 47332800.

The previous prime is 166231033. The next prime is 166231061. The reversal of 166231044 is 440132661.

It is a junction number, because it is equal to n+sod(n) for n = 166230999 and 166231017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86494 + ... + 88394.

It is an arithmetic number, because the mean of its divisors is an integer number (6692504).

Almost surely, 2^166231044 is an apocalyptic number.

166231044 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 166231044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240930144).

166231044 is an abundant number, since it is smaller than the sum of its proper divisors (315629244).

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

166231044 is a wasteful number, since it uses less digits than its factorization.

166231044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2265 (or 2260 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 166231044 is about 12893.0618551219. The cubic root of 166231044 is about 549.8413250256.

The spelling of 166231044 in words is "one hundred sixty-six million, two hundred thirty-one thousand, forty-four".