166607928 has 80 divisors (see below), whose sum is σ = 478114560. Its totient is φ = 54172800.

The previous prime is 166607927. The next prime is 166607933. The reversal of 166607928 is 829706661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166607927) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 23433 + ... + 29703.

It is an arithmetic number, because the mean of its divisors is an integer number (5976432).

Almost surely, 2^166607928 is an apocalyptic number.

166607928 is a gapful number since it is divisible by the number (18) 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 166607928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (239057280).

166607928 is an abundant number, since it is smaller than the sum of its proper divisors (311506632).

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

166607928 is a wasteful number, since it uses less digits than its factorization.

166607928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6330 (or 6317 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 166607928 is about 12907.6693481046. The cubic root of 166607928 is about 550.2565502847.

The spelling of 166607928 in words is "one hundred sixty-six million, six hundred seven thousand, nine hundred twenty-eight".