55111015144 has 16 divisors (see below), whose sum is σ = 103514130720. Its totient is φ = 27507246960.

The previous prime is 55111015067. The next prime is 55111015159. The reversal of 55111015144 is 44151011155.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6027724 + ... + 6036859.

It is an arithmetic number, because the mean of its divisors is an integer number (6469633170).

Almost surely, 2^55111015144 is an apocalyptic number.

It is an amenable number.

55111015144 is a deficient number, since it is larger than the sum of its proper divisors (48403115576).

55111015144 is a wasteful number, since it uses less digits than its factorization.

55111015144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12065160 (or 12065156 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 28.

Adding to 55111015144 its reverse (44151011155), we get a palindrome (99262026299).

The spelling of 55111015144 in words is "fifty-five billion, one hundred eleven million, fifteen thousand, one hundred forty-four".