55111624156 has 72 divisors (see below), whose sum is σ = 103948427520. Its totient is φ = 25550903136.

The previous prime is 55111624123. The next prime is 55111624159. The reversal of 55111624156 is 65142611155.

It is a super-2 number, since 2×55111624156² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55111624159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10638775 + ... + 10643953.

It is an arithmetic number, because the mean of its divisors is an integer number (1443728160).

Almost surely, 2^55111624156 is an apocalyptic number.

It is an amenable number.

55111624156 is a deficient number, since it is larger than the sum of its proper divisors (48836803364).

55111624156 is a wasteful number, since it uses less digits than its factorization.

55111624156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5383 (or 5358 counting only the distinct ones).

The product of its digits is 36000, while the sum is 37.

It can be divided in two parts, 55 and 111624156, that added together give a triangular number (111624211 = T₁₄₉₄₁).

The spelling of 55111624156 in words is "fifty-five billion, one hundred eleven million, six hundred twenty-four thousand, one hundred fifty-six".