66028134049 has 8 divisors (see below), whose sum is σ = 66963549312. Its totient is φ = 65092870080.

The previous prime is 66028134041. The next prime is 66028134059. The reversal of 66028134049 is 94043182066.

It is a happy number.

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 66028134049 - 2³ = 66028134041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66028133996 and 66028134014.

It is not an unprimeable number, because it can be changed into a prime (66028134041) 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, 1068532 + ... + 1128634.

It is an arithmetic number, because the mean of its divisors is an integer number (8370443664).

Almost surely, 2^66028134049 is an apocalyptic number.

It is an amenable number.

66028134049 is a deficient number, since it is larger than the sum of its proper divisors (935415263).

66028134049 is a wasteful number, since it uses less digits than its factorization.

66028134049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75647.

The product of its (nonzero) digits is 248832, while the sum is 43.

The spelling of 66028134049 in words is "sixty-six billion, twenty-eight million, one hundred thirty-four thousand, forty-nine".