66514158823 has 8 divisors (see below), whose sum is σ = 76165529760. Its totient is φ = 56900124960.

The previous prime is 66514158803. The next prime is 66514158859. The reversal of 66514158823 is 32885141566.

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

It is not a de Polignac number, because 66514158823 - 2⁹ = 66514158311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66514158803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9330448 + ... + 9337573.

It is an arithmetic number, because the mean of its divisors is an integer number (9520691220).

Almost surely, 2^66514158823 is an apocalyptic number.

66514158823 is a deficient number, since it is larger than the sum of its proper divisors (9651370937).

66514158823 is a wasteful number, since it uses less digits than its factorization.

66514158823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18668537.

The product of its digits is 1382400, while the sum is 49.

The spelling of 66514158823 in words is "sixty-six billion, five hundred fourteen million, one hundred fifty-eight thousand, eight hundred twenty-three".