163434530362645 has 16 divisors (see below), whose sum is σ = 207711006492528. Its totient is φ = 123025171287040.

The previous prime is 163434530362643. The next prime is 163434530362651. The reversal of 163434530362645 is 546263035434361.

It can be written as a sum of positive squares in 8 ways, for example, as 36234344133009 + 127200186229636 = 6019497^2 + 11278306^2 .

It is not a de Polignac number, because 163434530362645 - 2¹ = 163434530362643 is a prime.

It is a super-2 number, since 2×163434530362645² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163434530362643) 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 in 15 ways as a sum of consecutive naturals, for example, 245104786 + ... + 245770675.

It is an arithmetic number, because the mean of its divisors is an integer number (12981937905783).

Almost surely, 2^{163434530362645} is an apocalyptic number.

It is an amenable number.

163434530362645 is a deficient number, since it is larger than the sum of its proper divisors (44276476129883).

163434530362645 is a wasteful number, since it uses less digits than its factorization.

163434530362645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490879400.

The product of its (nonzero) digits is 55987200, while the sum is 55.

The spelling of 163434530362645 in words is "one hundred sixty-three trillion, four hundred thirty-four billion, five hundred thirty million, three hundred sixty-two thousand, six hundred forty-five".