72805132163 has 2 divisors, whose sum is σ = 72805132164. Its totient is φ = 72805132162.

The previous prime is 72805132111. The next prime is 72805132219. The reversal of 72805132163 is 36123150827.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72805132163 - 2¹⁶ = 72805066627 is a prime.

It is not a weakly prime, because it can be changed into another prime (72805132063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36402566081 + 36402566082.

It is an arithmetic number, because the mean of its divisors is an integer number (36402566082).

Almost surely, 2^72805132163 is an apocalyptic number.

72805132163 is a deficient number, since it is larger than the sum of its proper divisors (1).

72805132163 is an equidigital number, since it uses as much as digits as its factorization.

72805132163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 38.

The spelling of 72805132163 in words is "seventy-two billion, eight hundred five million, one hundred thirty-two thousand, one hundred sixty-three".