243155055429 has 24 divisors (see below), whose sum is σ = 412626762912. Its totient is φ = 136030799520.

The previous prime is 243155055419. The next prime is 243155055487. The reversal of 243155055429 is 924550551342.

243155055429 is a `hidden beast` number, since 2 + 4 + 3 + 1 + 550 + 55 + 42 + 9 = 666.

It is not a de Polignac number, because 243155055429 - 2⁷ = 243155055301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243155055419) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 94464547 + ... + 94467120.

It is an arithmetic number, because the mean of its divisors is an integer number (17192781788).

Almost surely, 2^243155055429 is an apocalyptic number.

It is an amenable number.

243155055429 is a deficient number, since it is larger than the sum of its proper divisors (169471707483).

243155055429 is a wasteful number, since it uses less digits than its factorization.

243155055429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188931697 (or 188931694 counting only the distinct ones).

The product of its (nonzero) digits is 1080000, while the sum is 45.

The spelling of 243155055429 in words is "two hundred forty-three billion, one hundred fifty-five million, fifty-five thousand, four hundred twenty-nine".