65766347022001 has 6 divisors (see below), whose sum is σ = 69862520885270. Its totient is φ = 61897738373376.

The previous prime is 65766347021927. The next prime is 65766347022041. The reversal of 65766347022001 is 10022074366756.

It can be written as a sum of positive squares in 3 ways, for example, as 9147479270400 + 56618867751601 = 3024480^2 + 7524551^2 .

It is a de Polignac number, because none of the positive numbers 2^k-65766347022001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65766347022041) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 113782607016 + ... + 113782607593.

Almost surely, 2^{65766347022001} is an apocalyptic number.

It is an amenable number.

65766347022001 is a deficient number, since it is larger than the sum of its proper divisors (4096173863269).

65766347022001 is a wasteful number, since it uses less digits than its factorization.

65766347022001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227565214643 (or 227565214626 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 49.

The spelling of 65766347022001 in words is "sixty-five trillion, seven hundred sixty-six billion, three hundred forty-seven million, twenty-two thousand, one".