162144336121243 has 96 divisors (see below), whose sum is σ = 201497419791360. Its totient is φ = 129642471060480.

The previous prime is 162144336121237. The next prime is 162144336121267. The reversal of 162144336121243 is 342121633441261.

It is a de Polignac number, because none of the positive numbers 2^k-162144336121243 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 162144336121243.

It is not an unprimeable number, because it can be changed into a prime (162144306121243) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 71460702313 + ... + 71460704581.

It is an arithmetic number, because the mean of its divisors is an integer number (2098931456160).

Almost surely, 2^{162144336121243} is an apocalyptic number.

162144336121243 is a deficient number, since it is larger than the sum of its proper divisors (39353083670117).

162144336121243 is a wasteful number, since it uses less digits than its factorization.

162144336121243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4065 (or 4058 counting only the distinct ones).

The product of its digits is 497664, while the sum is 43.

The spelling of 162144336121243 in words is "one hundred sixty-two trillion, one hundred forty-four billion, three hundred thirty-six million, one hundred twenty-one thousand, two hundred forty-three".