166207552 has 84 divisors (see below), whose sum is σ = 388827264. Its totient is φ = 69050880.

The previous prime is 166207541. The next prime is 166207571. The reversal of 166207552 is 255702661.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 613177 + ... + 613447.

It is an arithmetic number, because the mean of its divisors is an integer number (4628896).

Almost surely, 2^166207552 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 166207552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194413632).

166207552 is an abundant number, since it is smaller than the sum of its proper divisors (222619712).

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

166207552 is an equidigital number, since it uses as much as digits as its factorization.

166207552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364 (or 317 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 166207552 is about 12892.1507903065. The cubic root of 166207552 is about 549.8154223610.

The spelling of 166207552 in words is "one hundred sixty-six million, two hundred seven thousand, five hundred fifty-two".