163203514493 has 2 divisors, whose sum is σ = 163203514494. Its totient is φ = 163203514492.

The previous prime is 163203514451. The next prime is 163203514501. The reversal of 163203514493 is 394415302361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 142312281049 + 20891233444 = 377243^2 + 144538^2 .

It is a cyclic number.

It is not a de Polignac number, because 163203514493 - 2⁸ = 163203514237 is a prime.

It is a super-2 number, since 2×163203514493² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 163203514493.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163203514403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81601757246 + 81601757247.

It is an arithmetic number, because the mean of its divisors is an integer number (81601757247).

Almost surely, 2^163203514493 is an apocalyptic number.

It is an amenable number.

163203514493 is a deficient number, since it is larger than the sum of its proper divisors (1).

163203514493 is an equidigital number, since it uses as much as digits as its factorization.

163203514493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 41.

The spelling of 163203514493 in words is "one hundred sixty-three billion, two hundred three million, five hundred fourteen thousand, four hundred ninety-three".