55666941373811 has 16 divisors (see below), whose sum is σ = 55948416054336. Its totient is φ = 55386005078016.

The previous prime is 55666941373793. The next prime is 55666941373829. The reversal of 55666941373811 is 11837314966655.

It is an interprime number because it is at equal distance from previous prime (55666941373793) and next prime (55666941373829).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55666941373811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55666941373831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 849105245 + ... + 849170801.

It is an arithmetic number, because the mean of its divisors is an integer number (3496776003396).

Almost surely, 2^{55666941373811} is an apocalyptic number.

55666941373811 is a deficient number, since it is larger than the sum of its proper divisors (281474680525).

55666941373811 is a wasteful number, since it uses less digits than its factorization.

55666941373811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69598.

The product of its digits is 97977600, while the sum is 65.

The spelling of 55666941373811 in words is "fifty-five trillion, six hundred sixty-six billion, nine hundred forty-one million, three hundred seventy-three thousand, eight hundred eleven".