501132042720 has 72 divisors (see below), whose sum is σ = 1710113100696. Its totient is φ = 133635211008.

The previous prime is 501132042707. The next prime is 501132042721. The reversal of 501132042720 is 27240231105.

501132042720 is a `hidden beast` number, since 501 + 132 + 0 + 4 + 2 + 7 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×501132042720² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501132042721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 174002742 + ... + 174005621.

It is an arithmetic number, because the mean of its divisors is an integer number (23751570843).

Almost surely, 2^501132042720 is an apocalyptic number.

It is an amenable number.

501132042720 is an abundant number, since it is smaller than the sum of its proper divisors (1208981057976).

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

501132042720 is a wasteful number, since it uses less digits than its factorization.

501132042720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348008384 (or 348008373 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

Adding to 501132042720 its reverse (27240231105), we get a palindrome (528372273825).

The spelling of 501132042720 in words is "five hundred one billion, one hundred thirty-two million, forty-two thousand, seven hundred twenty".