162921359243 has 4 divisors (see below), whose sum is σ = 162957384408. Its totient is φ = 162885334080.

The previous prime is 162921359213. The next prime is 162921359261. The reversal of 162921359243 is 342953129261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342953129261 = 10007 ⋅34271323.

It is a cyclic number.

It is not a de Polignac number, because 162921359243 - 2⁶ = 162921359179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (162921359213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18005798 + ... + 18014843.

It is an arithmetic number, because the mean of its divisors is an integer number (40739346102).

Almost surely, 2^162921359243 is an apocalyptic number.

162921359243 is a deficient number, since it is larger than the sum of its proper divisors (36025165).

162921359243 is an equidigital number, since it uses as much as digits as its factorization.

162921359243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36025164.

The product of its digits is 699840, while the sum is 47.

The spelling of 162921359243 in words is "one hundred sixty-two billion, nine hundred twenty-one million, three hundred fifty-nine thousand, two hundred forty-three".