4243126655 has 16 divisors (see below), whose sum is σ = 5166665568. Its totient is φ = 3344880000.

The previous prime is 4243126639. The next prime is 4243126669. The reversal of 4243126655 is 5566213424.

It is not a de Polignac number, because 4243126655 - 2⁴ = 4243126639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86645 + ... + 126465.

It is an arithmetic number, because the mean of its divisors is an integer number (322916598).

Almost surely, 2^4243126655 is an apocalyptic number.

4243126655 is a deficient number, since it is larger than the sum of its proper divisors (923538913).

4243126655 is a wasteful number, since it uses less digits than its factorization.

4243126655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40138.

The product of its digits is 172800, while the sum is 38.

The square root of 4243126655 is about 65139.2865711623. The cubic root of 4243126655 is about 1618.9322149845.

The spelling of 4243126655 in words is "four billion, two hundred forty-three million, one hundred twenty-six thousand, six hundred fifty-five".