6126543655 has 4 divisors (see below), whose sum is σ = 7351852392. Its totient is φ = 4901234920.

The previous prime is 6126543653. The next prime is 6126543659. The reversal of 6126543655 is 5563456216.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 6126543655 - 2¹ = 6126543653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6126543653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 612654361 + ... + 612654370.

It is an arithmetic number, because the mean of its divisors is an integer number (1837963098).

Almost surely, 2^6126543655 is an apocalyptic number.

6126543655 is a deficient number, since it is larger than the sum of its proper divisors (1225308737).

6126543655 is a wasteful number, since it uses less digits than its factorization.

6126543655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225308736.

The product of its digits is 648000, while the sum is 43.

The square root of 6126543655 is about 78272.2406412388. The cubic root of 6126543655 is about 1829.8065483743.

The spelling of 6126543655 in words is "six billion, one hundred twenty-six million, five hundred forty-three thousand, six hundred fifty-five".