166502245 has 48 divisors (see below), whose sum is σ = 254702448. Its totient is φ = 103541760.

The previous prime is 166502243. The next prime is 166502249. The reversal of 166502245 is 542205661.

It can be written as a sum of positive squares in 8 ways, for example, as 15752961 + 150749284 = 3969^2 + 12278^2 .

It is not a de Polignac number, because 166502245 - 2¹ = 166502243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166502243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 193857 + ... + 194713.

It is an arithmetic number, because the mean of its divisors is an integer number (5306301).

Almost surely, 2^166502245 is an apocalyptic number.

It is an amenable number.

166502245 is a deficient number, since it is larger than the sum of its proper divisors (88200203).

166502245 is a wasteful number, since it uses less digits than its factorization.

166502245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 950 (or 943 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 166502245 is about 12903.5748922537. The cubic root of 166502245 is about 550.1401791454.

The spelling of 166502245 in words is "one hundred sixty-six million, five hundred two thousand, two hundred forty-five".