163397501513 has 2 divisors, whose sum is σ = 163397501514. Its totient is φ = 163397501512.

The previous prime is 163397501507. The next prime is 163397501539. The reversal of 163397501513 is 315105793361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 163303275664 + 94225849 = 404108^2 + 9707^2 .

It is an emirp because it is prime and its reverse (315105793361) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 163397501513 - 2¹⁴ = 163397485129 is a prime.

It is not a weakly prime, because it can be changed into another prime (163397501503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81698750756 + 81698750757.

It is an arithmetic number, because the mean of its divisors is an integer number (81698750757).

Almost surely, 2^163397501513 is an apocalyptic number.

It is an amenable number.

163397501513 is a deficient number, since it is larger than the sum of its proper divisors (1).

163397501513 is an equidigital number, since it uses as much as digits as its factorization.

163397501513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 255150, while the sum is 44.

The spelling of 163397501513 in words is "one hundred sixty-three billion, three hundred ninety-seven million, five hundred one thousand, five hundred thirteen".