2015355015424 has 81 divisors (see below), whose sum is σ = 4075702050693. Its totient is φ = 994605536256.

The previous prime is 2015355015329. The next prime is 2015355015491. The reversal of 2015355015424 is 4245105535102.

The square root of 2015355015424 is 1419632.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 942390509824 + 1072964505600 = 970768^2 + 1035840^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1885270762 + ... + 1885271830.

Almost surely, 2^{2015355015424} is an apocalyptic number.

2015355015424 is the 1419632-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2015355015424

2015355015424 is an abundant number, since it is smaller than the sum of its proper divisors (2060347035269).

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

2015355015424 is an frugal number, since it uses more digits than its factorization.

2015355015424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2320 (or 1154 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 37.

The spelling of 2015355015424 in words is "two trillion, fifteen billion, three hundred fifty-five million, fifteen thousand, four hundred twenty-four".