515000016 has 120 divisors (see below), whose sum is σ = 1554483840. Its totient is φ = 158630400.

The previous prime is 515000011. The next prime is 515000021. The reversal of 515000016 is 610000515.

It is an interprime number because it is at equal distance from previous prime (515000011) and next prime (515000021).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (515000011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 109881 + ... + 114471.

It is an arithmetic number, because the mean of its divisors is an integer number (12954032).

Almost surely, 2^515000016 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 515000016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (777241920).

515000016 is an abundant number, since it is smaller than the sum of its proper divisors (1039483824).

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

515000016 is a wasteful number, since it uses less digits than its factorization.

515000016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4665 (or 4656 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 515000016 is about 22693.6117883426. The cubic root of 515000016 is about 801.5594664386.

The spelling of 515000016 in words is "five hundred fifteen million, sixteen", and thus it is an aban number.