163450640504 has 16 divisors (see below), whose sum is σ = 306486104400. Its totient is φ = 81721012672.

The previous prime is 163450640461. The next prime is 163450640657. The reversal of 163450640504 is 405046054361.

It is a super-2 number, since 2×163450640504² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 374237 + ... + 683340.

It is an arithmetic number, because the mean of its divisors is an integer number (19155381525).

Almost surely, 2^163450640504 is an apocalyptic number.

It is an amenable number.

163450640504 is a deficient number, since it is larger than the sum of its proper divisors (143035463896).

163450640504 is a wasteful number, since it uses less digits than its factorization.

163450640504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1076902 (or 1076898 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 38.

Adding to 163450640504 its reverse (405046054361), we get a palindrome (568496694865).

The spelling of 163450640504 in words is "one hundred sixty-three billion, four hundred fifty million, six hundred forty thousand, five hundred four".