105105155555 has 16 divisors (see below), whose sum is σ = 128025397920. Its totient is φ = 82818312192.

The previous prime is 105105155537. The next prime is 105105155581. The reversal of 105105155555 is 555551501501.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105105155555 is a prime.

It is a super-2 number, since 2×105105155555² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3393881 + ... + 3424709.

It is an arithmetic number, because the mean of its divisors is an integer number (8001587370).

Almost surely, 2^105105155555 is an apocalyptic number.

105105155555 is a deficient number, since it is larger than the sum of its proper divisors (22920242365).

105105155555 is a wasteful number, since it uses less digits than its factorization.

105105155555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41078.

The product of its (nonzero) digits is 78125, while the sum is 38.

The spelling of 105105155555 in words is "one hundred five billion, one hundred five million, one hundred fifty-five thousand, five hundred fifty-five".