4243605655551 has 8 divisors (see below), whose sum is σ = 5778526850304. Its totient is φ = 2768877448920.

The previous prime is 4243605655511. The next prime is 4243605655571. The reversal of 4243605655551 is 1555565063424.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4243605655551 - 2¹¹ = 4243605653503 is a prime.

It is a super-2 number, since 2×4243605655551² (a number of 26 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 4243605655494 and 4243605655503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4243605655511) 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, 15048246865 + ... + 15048247146.

It is an arithmetic number, because the mean of its divisors is an integer number (722315856288).

Almost surely, 2^{4243605655551} is an apocalyptic number.

4243605655551 is a deficient number, since it is larger than the sum of its proper divisors (1534921194753).

4243605655551 is a wasteful number, since it uses less digits than its factorization.

4243605655551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30096494061.

The product of its (nonzero) digits is 10800000, while the sum is 51.

The spelling of 4243605655551 in words is "four trillion, two hundred forty-three billion, six hundred five million, six hundred fifty-five thousand, five hundred fifty-one".