243054412155 has 40 divisors (see below), whose sum is σ = 435903543504. Its totient is φ = 129567729600.

The previous prime is 243054412147. The next prime is 243054412187. The reversal of 243054412155 is 551214450342.

243054412155 is a `hidden beast` number, since 2 + 43 + 0 + 54 + 412 + 155 = 666.

It is not a de Polignac number, because 243054412155 - 2³ = 243054412147 is a prime.

It is a super-2 number, since 2×243054412155² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 722245 + ... + 1003865.

Almost surely, 2^243054412155 is an apocalyptic number.

243054412155 is a deficient number, since it is larger than the sum of its proper divisors (192849131349).

243054412155 is a wasteful number, since it uses less digits than its factorization.

243054412155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283769 (or 283760 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

Adding to 243054412155 its reverse (551214450342), we get a palindrome (794268862497).

The spelling of 243054412155 in words is "two hundred forty-three billion, fifty-four million, four hundred twelve thousand, one hundred fifty-five".