66074363748 has 72 divisors (see below), whose sum is σ = 175910454720. Its totient is φ = 20853892800.

The previous prime is 66074363701. The next prime is 66074363749. The reversal of 66074363748 is 84736347066.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 66074363694 and 66074363703.

It is not an unprimeable number, because it can be changed into a prime (66074363749) 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 23 ways as a sum of consecutive naturals, for example, 1237198 + ... + 1289498.

It is an arithmetic number, because the mean of its divisors is an integer number (2443200760).

Almost surely, 2^66074363748 is an apocalyptic number.

It is an amenable number.

66074363748 is an abundant number, since it is smaller than the sum of its proper divisors (109836090972).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66074363748 is a wasteful number, since it uses less digits than its factorization.

66074363748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54177 (or 54172 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 54.

The spelling of 66074363748 in words is "sixty-six billion, seventy-four million, three hundred sixty-three thousand, seven hundred forty-eight".