656213212363 has 2 divisors, whose sum is σ = 656213212364. Its totient is φ = 656213212362.

The previous prime is 656213212321. The next prime is 656213212373. The reversal of 656213212363 is 363212312656.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-656213212363 is a prime.

It is not a weakly prime, because it can be changed into another prime (656213212373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328106606181 + 328106606182.

It is an arithmetic number, because the mean of its divisors is an integer number (328106606182).

Almost surely, 2^656213212363 is an apocalyptic number.

656213212363 is a deficient number, since it is larger than the sum of its proper divisors (1).

656213212363 is an equidigital number, since it uses as much as digits as its factorization.

656213212363 is an evil number, because the sum of its binary digits is even.

The product of its digits is 233280, while the sum is 40.

The spelling of 656213212363 in words is "six hundred fifty-six billion, two hundred thirteen million, two hundred twelve thousand, three hundred sixty-three".