163811460403 has 8 divisors (see below), whose sum is σ = 173451183840. Its totient is φ = 154172154240.

The previous prime is 163811460389. The next prime is 163811460419. The reversal of 163811460403 is 304064118361.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 163811460403 - 2²¹ = 163809363251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163811460443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1103733 + ... + 1243321.

It is an arithmetic number, because the mean of its divisors is an integer number (21681397980).

Almost surely, 2^163811460403 is an apocalyptic number.

163811460403 is a deficient number, since it is larger than the sum of its proper divisors (9639723437).

163811460403 is a wasteful number, since it uses less digits than its factorization.

163811460403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208637.

The product of its (nonzero) digits is 41472, while the sum is 37.

Adding to 163811460403 its reverse (304064118361), we get a palindrome (467875578764).

The spelling of 163811460403 in words is "one hundred sixty-three billion, eight hundred eleven million, four hundred sixty thousand, four hundred three".