66603022761 has 8 divisors (see below), whose sum is σ = 96877124064. Its totient is φ = 40365468320.

The previous prime is 66603022741. The next prime is 66603022763. The reversal of 66603022761 is 16722030666.

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 66603022761 - 2¹¹ = 66603020713 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (66603022763) 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, 1009136676 + ... + 1009136741.

It is an arithmetic number, because the mean of its divisors is an integer number (12109640508).

Almost surely, 2^66603022761 is an apocalyptic number.

It is an amenable number.

66603022761 is a deficient number, since it is larger than the sum of its proper divisors (30274101303).

66603022761 is a wasteful number, since it uses less digits than its factorization.

66603022761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2018273431.

The product of its (nonzero) digits is 108864, while the sum is 39.

The spelling of 66603022761 in words is "sixty-six billion, six hundred three million, twenty-two thousand, seven hundred sixty-one".