501213360660 has 48 divisors (see below), whose sum is σ = 1407221442816. Its totient is φ = 133292702592.

The previous prime is 501213360619. The next prime is 501213360667. The reversal of 501213360660 is 66063312105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501213360667) 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, 11358847 + ... + 11402886.

It is an arithmetic number, because the mean of its divisors is an integer number (29317113392).

Almost surely, 2^501213360660 is an apocalyptic number.

It is an amenable number.

501213360660 is an abundant number, since it is smaller than the sum of its proper divisors (906008082156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

501213360660 is a wasteful number, since it uses less digits than its factorization.

501213360660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22762112 (or 22762110 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 33.

Adding to 501213360660 its reverse (66063312105), we get a palindrome (567276672765).

The spelling of 501213360660 in words is "five hundred one billion, two hundred thirteen million, three hundred sixty thousand, six hundred sixty".