501010501660 has 48 divisors (see below), whose sum is σ = 1122783427584. Its totient is φ = 187130539008.

The previous prime is 501010501639. The next prime is 501010501709. The reversal of 501010501660 is 66105010105.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5758239 + ... + 5844598.

It is an arithmetic number, because the mean of its divisors is an integer number (23391321408).

Almost surely, 2^501010501660 is an apocalyptic number.

It is an amenable number.

501010501660 is an abundant number, since it is smaller than the sum of its proper divisors (621772925924).

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

501010501660 is a wasteful number, since it uses less digits than its factorization.

501010501660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11602990 (or 11602988 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 25.

Adding to 501010501660 its reverse (66105010105), we get a palindrome (567115511765).

The spelling of 501010501660 in words is "five hundred one billion, ten million, five hundred one thousand, six hundred sixty".