660295776463 has 2 divisors, whose sum is σ = 660295776464. Its totient is φ = 660295776462.

The previous prime is 660295776461. The next prime is 660295776533. The reversal of 660295776463 is 364677592066.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 660295776463 - 2¹ = 660295776461 is a prime.

Together with 660295776461, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (660295776461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330147888231 + 330147888232.

It is an arithmetic number, because the mean of its divisors is an integer number (330147888232).

Almost surely, 2^660295776463 is an apocalyptic number.

660295776463 is a deficient number, since it is larger than the sum of its proper divisors (1).

660295776463 is an equidigital number, since it uses as much as digits as its factorization.

660295776463 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68584320, while the sum is 61.

The spelling of 660295776463 in words is "six hundred sixty billion, two hundred ninety-five million, seven hundred seventy-six thousand, four hundred sixty-three".