555779977555 has 24 divisors (see below), whose sum is σ = 740336666832. Its totient is φ = 400201560000.

The previous prime is 555779977547. The next prime is 555779977583.

555779977555 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 555779977555 - 2³ = 555779977547 is a prime.

It is a Duffinian number.

It is a zygodrome in base 10.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 4486641 + ... + 4608850.

It is an arithmetic number, because the mean of its divisors is an integer number (30847361118).

Almost surely, 2^555779977555 is an apocalyptic number.

555779977555 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

555779977555 is a deficient number, since it is larger than the sum of its proper divisors (184556689277).

555779977555 is a wasteful number, since it uses less digits than its factorization.

555779977555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9095619 (or 9095608 counting only the distinct ones).

The product of its digits is 3038765625, while the sum is 76.

The spelling of 555779977555 in words is "five hundred fifty-five billion, seven hundred seventy-nine million, nine hundred seventy-seven thousand, five hundred fifty-five".