162133236178 has 8 divisors (see below), whose sum is σ = 243222553980. Its totient is φ = 81059051520.

The previous prime is 162133236143. The next prime is 162133236259. The reversal of 162133236178 is 871632331261.

It can be written as a sum of positive squares in 2 ways, for example, as 161895983769 + 237252409 = 402363^2 + 15403^2 .

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

It is a super-2 number, since 2×162133236178² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3756463 + ... + 3799378.

Almost surely, 2^162133236178 is an apocalyptic number.

162133236178 is a deficient number, since it is larger than the sum of its proper divisors (81089317802).

162133236178 is a wasteful number, since it uses less digits than its factorization.

162133236178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7566572.

The product of its digits is 217728, while the sum is 43.

The spelling of 162133236178 in words is "one hundred sixty-two billion, one hundred thirty-three million, two hundred thirty-six thousand, one hundred seventy-eight".