163225451065 has 16 divisors (see below), whose sum is σ = 198859815936. Its totient is φ = 128591780800.

The previous prime is 163225451063. The next prime is 163225451093. The reversal of 163225451065 is 560154522361.

163225451065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 163225451065 - 2¹ = 163225451063 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163225451063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39975 + ... + 572755.

It is an arithmetic number, because the mean of its divisors is an integer number (12428738496).

Almost surely, 2^163225451065 is an apocalyptic number.

It is an amenable number.

163225451065 is a deficient number, since it is larger than the sum of its proper divisors (35634364871).

163225451065 is an equidigital number, since it uses as much as digits as its factorization.

163225451065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533720.

The product of its (nonzero) digits is 216000, while the sum is 40.

The spelling of 163225451065 in words is "one hundred sixty-three billion, two hundred twenty-five million, four hundred fifty-one thousand, sixty-five".