501451230164 has 12 divisors (see below), whose sum is σ = 878125080000. Its totient is φ = 250558350168.

The previous prime is 501451230151. The next prime is 501451230191. The reversal of 501451230164 is 461032154105.

It is a self number, because there is not a number n which added to its sum of digits gives 501451230164.

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, 41809484 + ... + 41821475.

It is an arithmetic number, because the mean of its divisors is an integer number (73177090000).

Almost surely, 2^501451230164 is an apocalyptic number.

It is an amenable number.

501451230164 is a deficient number, since it is larger than the sum of its proper divisors (376673849836).

501451230164 is a wasteful number, since it uses less digits than its factorization.

501451230164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83632462 (or 83632460 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

Adding to 501451230164 its reverse (461032154105), we get a palindrome (962483384269).

The spelling of 501451230164 in words is "five hundred one billion, four hundred fifty-one million, two hundred thirty thousand, one hundred sixty-four".