815416224016 has 15 divisors (see below), whose sum is σ = 1579875932343. Its totient is φ = 407706306000.

The previous prime is 815416224013. The next prime is 815416224059. The reversal of 815416224016 is 610422614518.

The square root of 815416224016 is 903004.

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

It is a super-2 number, since 2×815416224016² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 815416224016.

It is not an unprimeable number, because it can be changed into a prime (815416224013) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 3499141 + ... + 3724891.

Almost surely, 2^815416224016 is an apocalyptic number.

815416224016 is the 903004-th square number.

It is an amenable number.

815416224016 is a deficient number, since it is larger than the sum of its proper divisors (764459708327).

815416224016 is an frugal number, since it uses more digits than its factorization.

815416224016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451510 (or 225753 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 40.

The spelling of 815416224016 in words is "eight hundred fifteen billion, four hundred sixteen million, two hundred twenty-four thousand, sixteen".