2015567660 has 24 divisors (see below), whose sum is σ = 4251682176. Its totient is φ = 802609920.

The previous prime is 2015567647. The next prime is 2015567663. The reversal of 2015567660 is 667655102.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (2015567663) 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, 221501 + ... + 230420.

It is an arithmetic number, because the mean of its divisors is an integer number (177153424).

Almost surely, 2^2015567660 is an apocalyptic number.

2015567660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2015567660 is an abundant number, since it is smaller than the sum of its proper divisors (2236114516).

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

2015567660 is a wasteful number, since it uses less digits than its factorization.

2015567660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452153 (or 452151 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 2015567660 is about 44895.0738945822. The cubic root of 2015567660 is about 1263.1816083493.

The spelling of 2015567660 in words is "two billion, fifteen million, five hundred sixty-seven thousand, six hundred sixty".