766246340401 has 2 divisors, whose sum is σ = 766246340402. Its totient is φ = 766246340400.

The previous prime is 766246340393. The next prime is 766246340449. The reversal of 766246340401 is 104043642667.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 440862800625 + 325383539776 = 663975^2 + 570424^2 .

It is a cyclic number.

It is not a de Polignac number, because 766246340401 - 2³ = 766246340393 is a prime.

It is not a weakly prime, because it can be changed into another prime (766246740401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 383123170200 + 383123170201.

It is an arithmetic number, because the mean of its divisors is an integer number (383123170201).

Almost surely, 2^766246340401 is an apocalyptic number.

It is an amenable number.

766246340401 is a deficient number, since it is larger than the sum of its proper divisors (1).

766246340401 is an equidigital number, since it uses as much as digits as its factorization.

766246340401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 580608, while the sum is 43.

The spelling of 766246340401 in words is "seven hundred sixty-six billion, two hundred forty-six million, three hundred forty thousand, four hundred one".