75066266056 has 8 divisors (see below), whose sum is σ = 140749248870. Its totient is φ = 37533133024.

The previous prime is 75066266003. The next prime is 75066266129. The reversal of 75066266056 is 65066266057.

It can be written as a sum of positive squares in only one way, i.e., 72648577156 + 2417688900 = 269534^2 + 49170^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4691641621 + ... + 4691641636.

Almost surely, 2^75066266056 is an apocalyptic number.

It is an amenable number.

75066266056 is a deficient number, since it is larger than the sum of its proper divisors (65682982814).

75066266056 is a wasteful number, since it uses less digits than its factorization.

75066266056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9383283263 (or 9383283259 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 49.

Subtracting from 75066266056 its reverse (65066266057), we obtain a palindrome (9999999999).

The spelling of 75066266056 in words is "seventy-five billion, sixty-six million, two hundred sixty-six thousand, fifty-six".