66358759445 has 32 divisors (see below), whose sum is σ = 90900973440. Its totient is φ = 46070519040.

The previous prime is 66358759427. The next prime is 66358759451. The reversal of 66358759445 is 54495785366.

It is not a de Polignac number, because 66358759445 - 2¹⁶ = 66358693909 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 199775 + ... + 415484.

It is an arithmetic number, because the mean of its divisors is an integer number (2840655420).

Almost surely, 2^66358759445 is an apocalyptic number.

It is an amenable number.

66358759445 is a deficient number, since it is larger than the sum of its proper divisors (24542213995).

66358759445 is a wasteful number, since it uses less digits than its factorization.

66358759445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615365.

The product of its digits is 108864000, while the sum is 62.

The spelling of 66358759445 in words is "sixty-six billion, three hundred fifty-eight million, seven hundred fifty-nine thousand, four hundred forty-five".