2015566355 has 16 divisors (see below), whose sum is σ = 2702917728. Its totient is φ = 1430112000.

The previous prime is 2015566349. The next prime is 2015566363. The reversal of 2015566355 is 5536655102.

It is not a de Polignac number, because 2015566355 - 2¹⁶ = 2015500819 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 444656 + ... + 449165.

It is an arithmetic number, because the mean of its divisors is an integer number (168932358).

Almost surely, 2^2015566355 is an apocalyptic number.

2015566355 is a deficient number, since it is larger than the sum of its proper divisors (687351373).

2015566355 is a wasteful number, since it uses less digits than its factorization.

2015566355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893878.

The product of its (nonzero) digits is 135000, while the sum is 38.

The square root of 2015566355 is about 44895.0593606913. The cubic root of 2015566355 is about 1263.1813357293.

The spelling of 2015566355 in words is "two billion, fifteen million, five hundred sixty-six thousand, three hundred fifty-five".