162921359242 has 4 divisors (see below), whose sum is σ = 244382038866. Its totient is φ = 81460679620.

The previous prime is 162921359213. The next prime is 162921359261. The reversal of 162921359242 is 242953129261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 242953129261 = 631 ⋅385028731.

It can be written as a sum of positive squares in only one way, i.e., 162867937761 + 53421481 = 403569^2 + 7309^2 .

It is a junction number, because it is equal to n+sod(n) for n = 162921359192 and 162921359201.

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 as a sum of consecutive naturals, namely, 40730339809 + ... + 40730339812.

Almost surely, 2^162921359242 is an apocalyptic number.

162921359242 is a deficient number, since it is larger than the sum of its proper divisors (81460679624).

162921359242 is an equidigital number, since it uses as much as digits as its factorization.

162921359242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81460679623.

The product of its digits is 466560, while the sum is 46.

The spelling of 162921359242 in words is "one hundred sixty-two billion, nine hundred twenty-one million, three hundred fifty-nine thousand, two hundred forty-two".