163267537453 has 4 divisors (see below), whose sum is σ = 171860565760. Its totient is φ = 154674509148.

The previous prime is 163267537441. The next prime is 163267537463. The reversal of 163267537453 is 354735762361.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 163267537453 - 2³⁷ = 25828583981 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 163267537453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163267537463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4296514125 + ... + 4296514162.

It is an arithmetic number, because the mean of its divisors is an integer number (42965141440).

Almost surely, 2^163267537453 is an apocalyptic number.

It is an amenable number.

163267537453 is a deficient number, since it is larger than the sum of its proper divisors (8593028307).

163267537453 is an equidigital number, since it uses as much as digits as its factorization.

163267537453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8593028306.

The product of its digits is 9525600, while the sum is 52.

The spelling of 163267537453 in words is "one hundred sixty-three billion, two hundred sixty-seven million, five hundred thirty-seven thousand, four hundred fifty-three".