555655516939 has 4 divisors (see below), whose sum is σ = 555744158640. Its totient is φ = 555566875240.

The previous prime is 555655516919. The next prime is 555655516979. The reversal of 555655516939 is 939615556555.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-555655516939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (555655516909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44311447 + ... + 44323984.

It is an arithmetic number, because the mean of its divisors is an integer number (138936039660).

Almost surely, 2^555655516939 is an apocalyptic number.

555655516939 is a deficient number, since it is larger than the sum of its proper divisors (88641701).

555655516939 is an equidigital number, since it uses as much as digits as its factorization.

555655516939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88641700.

The product of its digits is 136687500, while the sum is 64.

The spelling of 555655516939 in words is "five hundred fifty-five billion, six hundred fifty-five million, five hundred sixteen thousand, nine hundred thirty-nine".