55113196644 has 81 divisors (see below), whose sum is σ = 153173232121. Its totient is φ = 16696273440.

The previous prime is 55113196639. The next prime is 55113196651. The reversal of 55113196644 is 44669131155.

The square root of 55113196644 is 234762.

It is a perfect power (a square), and thus also a powerful number.

55113196644 is a `hidden beast` number, since 5 + 511 + 3 + 1 + 96 + 6 + 44 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6751908900 + 48361287744 = 82170^2 + 219912^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55113196644.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 15492514 + ... + 15496070.

Almost surely, 2^55113196644 is an apocalyptic number.

55113196644 is the 234762-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55113196644

55113196644 is an abundant number, since it is smaller than the sum of its proper divisors (98060035477).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55113196644 is a wasteful number, since it uses less digits than its factorization.

55113196644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7146 (or 3573 counting only the distinct ones).

The product of its digits is 388800, while the sum is 45.

The spelling of 55113196644 in words is "fifty-five billion, one hundred thirteen million, one hundred ninety-six thousand, six hundred forty-four".