66055515041 has 4 divisors (see below), whose sum is σ = 66056218800. Its totient is φ = 66054811284.

The previous prime is 66055514989. The next prime is 66055515047. The reversal of 66055515041 is 14051555066.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 66055515041 - 2¹⁰ = 66055514017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66055514986 and 66055515004.

It is not an unprimeable number, because it can be changed into a prime (66055515047) 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 3 ways as a sum of consecutive naturals, for example, 184571 + ... + 407648.

It is an arithmetic number, because the mean of its divisors is an integer number (16514054700).

Almost surely, 2^66055515041 is an apocalyptic number.

It is an amenable number.

66055515041 is a deficient number, since it is larger than the sum of its proper divisors (703759).

66055515041 is a wasteful number, since it uses less digits than its factorization.

66055515041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703758.

The product of its (nonzero) digits is 90000, while the sum is 38.

The spelling of 66055515041 in words is "sixty-six billion, fifty-five million, five hundred fifteen thousand, forty-one".