501045605016 has 128 divisors (see below), whose sum is σ = 1370224477440. Its totient is φ = 151417497600.

The previous prime is 501045605009. The next prime is 501045605017. The reversal of 501045605016 is 610506540105.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501045605017) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 251401716 + ... + 251403708.

It is an arithmetic number, because the mean of its divisors is an integer number (10704878730).

Almost surely, 2^501045605016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 501045605016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (685112238720).

501045605016 is an abundant number, since it is smaller than the sum of its proper divisors (869178872424).

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

501045605016 is a wasteful number, since it uses less digits than its factorization.

501045605016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4137 (or 4133 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 33.

The spelling of 501045605016 in words is "five hundred one billion, forty-five million, six hundred five thousand, sixteen".