2016315143521 has 64 divisors (see below), whose sum is σ = 2463801753600. Its totient is φ = 1611787507200.

The previous prime is 2016315143503. The next prime is 2016315143587. The reversal of 2016315143521 is 1253415136102.

It is a cyclic number.

It is not a de Polignac number, because 2016315143521 - 2⁵ = 2016315143489 is a prime.

It is a super-2 number, since 2×2016315143521² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2016315143321) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1955688276 + ... + 1955689306.

It is an arithmetic number, because the mean of its divisors is an integer number (38496902400).

Almost surely, 2^{2016315143521} is an apocalyptic number.

It is an amenable number.

2016315143521 is a deficient number, since it is larger than the sum of its proper divisors (447486610079).

2016315143521 is a wasteful number, since it uses less digits than its factorization.

2016315143521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1910.

The product of its (nonzero) digits is 21600, while the sum is 34.

The spelling of 2016315143521 in words is "two trillion, sixteen billion, three hundred fifteen million, one hundred forty-three thousand, five hundred twenty-one".