161207142182 has 8 divisors (see below), whose sum is σ = 242234201352. Its totient is φ = 80462408400.

The previous prime is 161207142181. The next prime is 161207142293. The reversal of 161207142182 is 281241702161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×161207142182² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161207142181) 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 3 ways as a sum of consecutive naturals, for example, 70579919 + ... + 70582202.

It is an arithmetic number, because the mean of its divisors is an integer number (30279275169).

Almost surely, 2^161207142182 is an apocalyptic number.

161207142182 is a deficient number, since it is larger than the sum of its proper divisors (81027059170).

161207142182 is a wasteful number, since it uses less digits than its factorization.

161207142182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141162694.

The product of its (nonzero) digits is 10752, while the sum is 35.

The spelling of 161207142182 in words is "one hundred sixty-one billion, two hundred seven million, one hundred forty-two thousand, one hundred eighty-two".