162520223293 has 4 divisors (see below), whose sum is σ = 163194581308. Its totient is φ = 161845865280.

The previous prime is 162520223273. The next prime is 162520223309. The reversal of 162520223293 is 392322025261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 392322025261 = 241 ⋅1627892221.

It can be written as a sum of positive squares in 2 ways, for example, as 82876045924 + 79644177369 = 287882^2 + 282213^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-162520223293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162520223213) 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, 337178646 + ... + 337179127.

It is an arithmetic number, because the mean of its divisors is an integer number (40798645327).

Almost surely, 2^162520223293 is an apocalyptic number.

It is an amenable number.

162520223293 is a deficient number, since it is larger than the sum of its proper divisors (674358015).

162520223293 is an equidigital number, since it uses as much as digits as its factorization.

162520223293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674358014.

The product of its (nonzero) digits is 77760, while the sum is 37.

The spelling of 162520223293 in words is "one hundred sixty-two billion, five hundred twenty million, two hundred twenty-three thousand, two hundred ninety-three".