105611501155 has 16 divisors (see below), whose sum is σ = 128427050880. Its totient is φ = 83361852288.

The previous prime is 105611501147. The next prime is 105611501167. The reversal of 105611501155 is 551105116501.

It is a cyclic number.

It is not a de Polignac number, because 105611501155 - 2³ = 105611501147 is a prime.

It is a super-2 number, since 2×105611501155² (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, 481929 + ... + 665941.

It is an arithmetic number, because the mean of its divisors is an integer number (8026690680).

Almost surely, 2^105611501155 is an apocalyptic number.

105611501155 is a deficient number, since it is larger than the sum of its proper divisors (22815549725).

105611501155 is a wasteful number, since it uses less digits than its factorization.

105611501155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185550.

The product of its (nonzero) digits is 3750, while the sum is 31.

Adding to 105611501155 its reverse (551105116501), we get a palindrome (656716617656).

The spelling of 105611501155 in words is "one hundred five billion, six hundred eleven million, five hundred one thousand, one hundred fifty-five".