801666411463 has 2 divisors, whose sum is σ = 801666411464. Its totient is φ = 801666411462.

The previous prime is 801666411449. The next prime is 801666411547. The reversal of 801666411463 is 364114666108.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-801666411463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (801666411443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400833205731 + 400833205732.

It is an arithmetic number, because the mean of its divisors is an integer number (400833205732).

Almost surely, 2^801666411463 is an apocalyptic number.

801666411463 is a deficient number, since it is larger than the sum of its proper divisors (1).

801666411463 is an equidigital number, since it uses as much as digits as its factorization.

801666411463 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 497664, while the sum is 46.

The spelling of 801666411463 in words is "eight hundred one billion, six hundred sixty-six million, four hundred eleven thousand, four hundred sixty-three".