55156111101 has 96 divisors (see below), whose sum is σ = 102777292800. Its totient is φ = 27703665792.

The previous prime is 55156111079. The next prime is 55156111111. The reversal of 55156111101 is 10111165155.

55156111101 is a `hidden beast` number, since 551 + 5 + 6 + 1 + 1 + 1 + 101 = 666.

It is not a de Polignac number, because 55156111101 - 2¹⁷ = 55155980029 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55156111111) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4269550 + ... + 4282448.

It is an arithmetic number, because the mean of its divisors is an integer number (1070596800).

Almost surely, 2^55156111101 is an apocalyptic number.

It is an amenable number.

55156111101 is a deficient number, since it is larger than the sum of its proper divisors (47621181699).

55156111101 is a wasteful number, since it uses less digits than its factorization.

55156111101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13175 (or 13172 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 27.

Adding to 55156111101 its reverse (10111165155), we get a palindrome (65267276256).

The spelling of 55156111101 in words is "fifty-five billion, one hundred fifty-six million, one hundred eleven thousand, one hundred one".