30455085665897 has 2 divisors, whose sum is σ = 30455085665898. Its totient is φ = 30455085665896.

The previous prime is 30455085665831. The next prime is 30455085665933. The reversal of 30455085665897 is 79856658055403.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20555152020841 + 9899933645056 = 4533779^2 + 3146416^2 .

It is a cyclic number.

It is not a de Polignac number, because 30455085665897 - 2¹⁶ = 30455085600361 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30455085665897.

It is not a weakly prime, because it can be changed into another prime (30455045665897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15227542832948 + 15227542832949.

It is an arithmetic number, because the mean of its divisors is an integer number (15227542832949).

Almost surely, 2^{30455085665897} is an apocalyptic number.

It is an amenable number.

30455085665897 is a deficient number, since it is larger than the sum of its proper divisors (1).

30455085665897 is an equidigital number, since it uses as much as digits as its factorization.

30455085665897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1088640000, while the sum is 71.

The spelling of 30455085665897 in words is "thirty trillion, four hundred fifty-five billion, eighty-five million, six hundred sixty-five thousand, eight hundred ninety-seven".