166225315 has 16 divisors (see below), whose sum is σ = 205083648. Its totient is φ = 129267936.

The previous prime is 166225313. The next prime is 166225321. The reversal of 166225315 is 513522661.

166225315 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 166225315 - 2¹ = 166225313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166225313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46212 + ... + 49678.

It is an arithmetic number, because the mean of its divisors is an integer number (12817728).

Almost surely, 2^166225315 is an apocalyptic number.

166225315 is a deficient number, since it is larger than the sum of its proper divisors (38858333).

166225315 is a wasteful number, since it uses less digits than its factorization.

166225315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3738.

The product of its digits is 10800, while the sum is 31.

The square root of 166225315 is about 12892.8396794500. The cubic root of 166225315 is about 549.8350083612.

Adding to 166225315 its reverse (513522661), we get a palindrome (679747976).

The spelling of 166225315 in words is "one hundred sixty-six million, two hundred twenty-five thousand, three hundred fifteen".