2015151684 has 96 divisors (see below), whose sum is σ = 5806918656. Its totient is φ = 529649280.

The previous prime is 2015151673. The next prime is 2015151689. The reversal of 2015151684 is 4861515102.

It is not an unprimeable number, because it can be changed into a prime (2015151689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 332239 + ... + 338249.

It is an arithmetic number, because the mean of its divisors is an integer number (60488736).

Almost surely, 2^2015151684 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 2015151684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2903459328).

2015151684 is an abundant number, since it is smaller than the sum of its proper divisors (3791766972).

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

2015151684 is a wasteful number, since it uses less digits than its factorization.

2015151684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6345 (or 6343 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 33.

The square root of 2015151684 is about 44890.4408978125. The cubic root of 2015151684 is about 1263.0947032397.

Adding to 2015151684 its reverse (4861515102), we get a palindrome (6876666786).

The spelling of 2015151684 in words is "two billion, fifteen million, one hundred fifty-one thousand, six hundred eighty-four".