501001115660 has 48 divisors (see below), whose sum is σ = 1101494872800. Its totient is φ = 191158861824.

The previous prime is 501001115653. The next prime is 501001115677. The reversal of 501001115660 is 66511100105.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5155445 + ... + 5251724.

It is an arithmetic number, because the mean of its divisors is an integer number (22947809850).

Almost surely, 2^501001115660 is an apocalyptic number.

It is an amenable number.

501001115660 is an abundant number, since it is smaller than the sum of its proper divisors (600493757140).

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

501001115660 is a wasteful number, since it uses less digits than its factorization.

501001115660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10407290 (or 10407288 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 26.

Adding to 501001115660 its reverse (66511100105), we get a palindrome (567512215765).

The spelling of 501001115660 in words is "five hundred one billion, one million, one hundred fifteen thousand, six hundred sixty".