161206310152 has 16 divisors (see below), whose sum is σ = 303215343660. Its totient is φ = 80348885184.

The previous prime is 161206310113. The next prime is 161206310173. The reversal of 161206310152 is 251013602161.

It can be written as a sum of positive squares in 2 ways, for example, as 141777853156 + 19428456996 = 376534^2 + 139386^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 161206310152.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 31781043 + ... + 31786114.

Almost surely, 2^161206310152 is an apocalyptic number.

It is an amenable number.

161206310152 is a deficient number, since it is larger than the sum of its proper divisors (142009033508).

161206310152 is a wasteful number, since it uses less digits than its factorization.

161206310152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63567480 (or 63567476 counting only the distinct ones).

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

The spelling of 161206310152 in words is "one hundred sixty-one billion, two hundred six million, three hundred ten thousand, one hundred fifty-two".