163474206253 has 4 divisors (see below), whose sum is σ = 163475926848. Its totient is φ = 163472485660.

The previous prime is 163474206211. The next prime is 163474206257. The reversal of 163474206253 is 352602474361.

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 163474206253 - 2¹⁷ = 163474075181 is a prime.

It is a super-2 number, since 2×163474206253² (a number of 23 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 (163474206257) 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, 708901 + ... + 910762.

It is an arithmetic number, because the mean of its divisors is an integer number (40868981712).

Almost surely, 2^163474206253 is an apocalyptic number.

It is an amenable number.

163474206253 is a deficient number, since it is larger than the sum of its proper divisors (1720595).

163474206253 is a wasteful number, since it uses less digits than its factorization.

163474206253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1720594.

The product of its (nonzero) digits is 725760, while the sum is 43.

The spelling of 163474206253 in words is "one hundred sixty-three billion, four hundred seventy-four million, two hundred six thousand, two hundred fifty-three".