163501631005603 has 16 divisors (see below), whose sum is σ = 186402862483200. Its totient is φ = 141959587110880.

The previous prime is 163501631005577. The next prime is 163501631005613. The reversal of 163501631005603 is 306500136105361.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-163501631005603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (163501631005613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 490160668 + ... + 490494121.

It is an arithmetic number, because the mean of its divisors is an integer number (11650178905200).

Almost surely, 2^{163501631005603} is an apocalyptic number.

163501631005603 is a deficient number, since it is larger than the sum of its proper divisors (22901231477597).

163501631005603 is a wasteful number, since it uses less digits than its factorization.

163501631005603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980655482.

The product of its (nonzero) digits is 145800, while the sum is 40.

The spelling of 163501631005603 in words is "one hundred sixty-three trillion, five hundred one billion, six hundred thirty-one million, five thousand, six hundred three".