2015966688 has 48 divisors (see below), whose sum is σ = 5309006976. Its totient is φ = 669818240.

The previous prime is 2015966681. The next prime is 2015966699. The reversal of 2015966688 is 8866695102.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 2015966688.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2015966681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3906 + ... + 63617.

It is an arithmetic number, because the mean of its divisors is an integer number (110604312).

Almost surely, 2^2015966688 is an apocalyptic number.

It is an amenable number.

2015966688 is an abundant number, since it is smaller than the sum of its proper divisors (3293040288).

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

2015966688 is a wasteful number, since it uses less digits than its factorization.

2015966688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67847 (or 67839 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 51.

The square root of 2015966688 is about 44899.5176811511. The cubic root of 2015966688 is about 1263.2649614714.

The spelling of 2015966688 in words is "two billion, fifteen million, nine hundred sixty-six thousand, six hundred eighty-eight".