66316042541 has 8 divisors (see below), whose sum is σ = 76104245184. Its totient is φ = 56606460480.

The previous prime is 66316042537. The next prime is 66316042553. The reversal of 66316042541 is 14524061366.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 66316042541 - 2² = 66316042537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66316042495 and 66316042504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66316042561) 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 7 ways as a sum of consecutive naturals, for example, 19653335 + ... + 19656708.

It is an arithmetic number, because the mean of its divisors is an integer number (9513030648).

Almost surely, 2^66316042541 is an apocalyptic number.

It is an amenable number.

66316042541 is a deficient number, since it is larger than the sum of its proper divisors (9788202643).

66316042541 is a wasteful number, since it uses less digits than its factorization.

66316042541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39310291.

The product of its (nonzero) digits is 103680, while the sum is 38.

The spelling of 66316042541 in words is "sixty-six billion, three hundred sixteen million, forty-two thousand, five hundred forty-one".