402265940663 has 2 divisors, whose sum is σ = 402265940664. Its totient is φ = 402265940662.

The previous prime is 402265940633. The next prime is 402265940683. The reversal of 402265940663 is 366049562204.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 402265940663 - 2⁸ = 402265940407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402265940633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201132970331 + 201132970332.

It is an arithmetic number, because the mean of its divisors is an integer number (201132970332).

Almost surely, 2^402265940663 is an apocalyptic number.

402265940663 is a deficient number, since it is larger than the sum of its proper divisors (1).

402265940663 is an equidigital number, since it uses as much as digits as its factorization.

402265940663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1866240, while the sum is 47.

The spelling of 402265940663 in words is "four hundred two billion, two hundred sixty-five million, nine hundred forty thousand, six hundred sixty-three".