55661110141 has 32 divisors (see below), whose sum is σ = 71618093568. Its totient is φ = 42046076160.

The previous prime is 55661110139. The next prime is 55661110151. The reversal of 55661110141 is 14101116655.

It is a cyclic number.

It is not a de Polignac number, because 55661110141 - 2¹ = 55661110139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55661110151) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1107735 + ... + 1156891.

It is an arithmetic number, because the mean of its divisors is an integer number (2238065424).

Almost surely, 2^55661110141 is an apocalyptic number.

It is an amenable number.

55661110141 is a deficient number, since it is larger than the sum of its proper divisors (15956983427).

55661110141 is a wasteful number, since it uses less digits than its factorization.

55661110141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49741.

The product of its (nonzero) digits is 3600, while the sum is 31.

Adding to 55661110141 its reverse (14101116655), we get a palindrome (69762226796).

The spelling of 55661110141 in words is "fifty-five billion, six hundred sixty-one million, one hundred ten thousand, one hundred forty-one".