162163782331 has 4 divisors (see below), whose sum is σ = 162178130464. Its totient is φ = 162149434200.

The previous prime is 162163782329. The next prime is 162163782337. The reversal of 162163782331 is 133287361261.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 162163782331 - 2¹ = 162163782329 is a prime.

It is a super-2 number, since 2×162163782331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (162163782337) 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, 7157100 + ... + 7179721.

It is an arithmetic number, because the mean of its divisors is an integer number (40544532616).

Almost surely, 2^162163782331 is an apocalyptic number.

162163782331 is a deficient number, since it is larger than the sum of its proper divisors (14348133).

162163782331 is a wasteful number, since it uses less digits than its factorization.

162163782331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14348132.

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

The spelling of 162163782331 in words is "one hundred sixty-two billion, one hundred sixty-three million, seven hundred eighty-two thousand, three hundred thirty-one".