501616104 has 128 divisors (see below), whose sum is σ = 1423267200. Its totient is φ = 145981440.

The previous prime is 501616097. The next prime is 501616121. The reversal of 501616104 is 401616105.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 869064 + ... + 869640.

It is an arithmetic number, because the mean of its divisors is an integer number (11119275).

Almost surely, 2^501616104 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 501616104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (711633600).

501616104 is an abundant number, since it is smaller than the sum of its proper divisors (921651096).

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

501616104 is a wasteful number, since it uses less digits than its factorization.

501616104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723 (or 719 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 501616104 is about 22396.7878053975. The cubic root of 501616104 is about 794.5547413734.

Subtracting from 501616104 its reverse (401616105), we obtain a palindrome (99999999).

It can be divided in two parts, 50161 and 6104, that added together give a palindrome (56265).

The spelling of 501616104 in words is "five hundred one million, six hundred sixteen thousand, one hundred four".