243315577158 has 16 divisors (see below), whose sum is σ = 490345897536. Its totient is φ = 80486068520.

The previous prime is 243315577157. The next prime is 243315577201. The reversal of 243315577158 is 851775513342.

It is a self number, because there is not a number n which added to its sum of digits gives 243315577158.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243315577157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154780116 + ... + 154781687.

It is an arithmetic number, because the mean of its divisors is an integer number (30646618596).

Almost surely, 2^243315577158 is an apocalyptic number.

243315577158 is an abundant number, since it is smaller than the sum of its proper divisors (247030320378).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243315577158 is a wasteful number, since it uses less digits than its factorization.

243315577158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309561939.

The product of its digits is 3528000, while the sum is 51.

The spelling of 243315577158 in words is "two hundred forty-three billion, three hundred fifteen million, five hundred seventy-seven thousand, one hundred fifty-eight".