163601911453 has 2 divisors, whose sum is σ = 163601911454. Its totient is φ = 163601911452.

The previous prime is 163601911411. The next prime is 163601911477. The reversal of 163601911453 is 354119106361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 140338645924 + 23263265529 = 374618^2 + 152523^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163601911453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163601911483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81800955726 + 81800955727.

It is an arithmetic number, because the mean of its divisors is an integer number (81800955727).

Almost surely, 2^163601911453 is an apocalyptic number.

It is an amenable number.

163601911453 is a deficient number, since it is larger than the sum of its proper divisors (1).

163601911453 is an equidigital number, since it uses as much as digits as its factorization.

163601911453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 40.

The spelling of 163601911453 in words is "one hundred sixty-three billion, six hundred one million, nine hundred eleven thousand, four hundred fifty-three".