655516105555 has 32 divisors (see below), whose sum is σ = 846285252480. Its totient is φ = 485655152640.

The previous prime is 655516105549. The next prime is 655516105591. The reversal of 655516105555 is 555501615556.

It is not a de Polignac number, because 655516105555 - 2⁵ = 655516105523 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 655516105499 and 655516105508.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2965117 + ... + 3178513.

It is an arithmetic number, because the mean of its divisors is an integer number (26446414140).

Almost surely, 2^655516105555 is an apocalyptic number.

655516105555 is a deficient number, since it is larger than the sum of its proper divisors (190769146925).

655516105555 is a wasteful number, since it uses less digits than its factorization.

655516105555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213999.

The product of its (nonzero) digits is 2812500, while the sum is 49.

The spelling of 655516105555 in words is "six hundred fifty-five billion, five hundred sixteen million, one hundred five thousand, five hundred fifty-five".