161502166 has 16 divisors (see below), whose sum is σ = 291432960. Its totient is φ = 65572200.

The previous prime is 161502163. The next prime is 161502167. The reversal of 161502166 is 661205161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161502163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 303310 + ... + 303841.

It is an arithmetic number, because the mean of its divisors is an integer number (18214560).

Almost surely, 2^161502166 is an apocalyptic number.

161502166 is a deficient number, since it is larger than the sum of its proper divisors (129930794).

161502166 is a wasteful number, since it uses less digits than its factorization.

161502166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607179.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 161502166 is about 12708.3502469833. The cubic root of 161502166 is about 544.5771947322.

The spelling of 161502166 in words is "one hundred sixty-one million, five hundred two thousand, one hundred sixty-six".