163215102493 has 2 divisors, whose sum is σ = 163215102494. Its totient is φ = 163215102492.

The previous prime is 163215102487. The next prime is 163215102553. The reversal of 163215102493 is 394201512361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 155237576004 + 7977526489 = 394002^2 + 89317^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163215102493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163215102793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81607551246 + 81607551247.

It is an arithmetic number, because the mean of its divisors is an integer number (81607551247).

Almost surely, 2^163215102493 is an apocalyptic number.

It is an amenable number.

163215102493 is a deficient number, since it is larger than the sum of its proper divisors (1).

163215102493 is an equidigital number, since it uses as much as digits as its factorization.

163215102493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 37.

The spelling of 163215102493 in words is "one hundred sixty-three billion, two hundred fifteen million, one hundred two thousand, four hundred ninety-three".