2015650663 has 12 divisors (see below), whose sum is σ = 2297506440. Its totient is φ = 1762671456.

The previous prime is 2015650661. The next prime is 2015650667. The reversal of 2015650663 is 3660565102.

It is not a de Polignac number, because 2015650663 - 2¹ = 2015650661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2015650661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 310656 + ... + 317077.

It is an arithmetic number, because the mean of its divisors is an integer number (191458870).

Almost surely, 2^2015650663 is an apocalyptic number.

2015650663 is a deficient number, since it is larger than the sum of its proper divisors (281855777).

2015650663 is a wasteful number, since it uses less digits than its factorization.

2015650663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627778 (or 627765 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 2015650663 is about 44895.9982960620. The cubic root of 2015650663 is about 1263.1989477860.

The spelling of 2015650663 in words is "two billion, fifteen million, six hundred fifty thousand, six hundred sixty-three".