6615727444423 has 4 divisors (see below), whose sum is σ = 6615835181968. Its totient is φ = 6615619706880.

The previous prime is 6615727444399. The next prime is 6615727444439. The reversal of 6615727444423 is 3244447275166.

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

It is a cyclic number.

It is not a de Polignac number, because 6615727444423 - 2¹³ = 6615727436231 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 (6615727444463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53776611 + ... + 53899492.

It is an arithmetic number, because the mean of its divisors is an integer number (1653958795492).

Almost surely, 2^{6615727444423} is an apocalyptic number.

6615727444423 is a deficient number, since it is larger than the sum of its proper divisors (107737545).

6615727444423 is a wasteful number, since it uses less digits than its factorization.

6615727444423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107737544.

The product of its digits is 27095040, while the sum is 55.

The spelling of 6615727444423 in words is "six trillion, six hundred fifteen billion, seven hundred twenty-seven million, four hundred forty-four thousand, four hundred twenty-three".