7220054916 has 36 divisors (see below), whose sum is σ = 18549891724. Its totient is φ = 2367230400.

The previous prime is 7220054911. The next prime is 7220054951. The reversal of 7220054916 is 6194500227.

It can be written as a sum of positive squares in 2 ways, for example, as 3905750016 + 3314304900 = 62496^2 + 57570^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (7220054911) 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, 1641715 + ... + 1646106.

Almost surely, 2^7220054916 is an apocalyptic number.

It is an amenable number.

7220054916 is an abundant number, since it is smaller than the sum of its proper divisors (11329836808).

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

7220054916 is a wasteful number, since it uses less digits than its factorization.

7220054916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3287892 (or 3287887 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 7220054916 is about 84970.9062915066. The cubic root of 7220054916 is about 1932.7699598150.

The spelling of 7220054916 in words is "seven billion, two hundred twenty million, fifty-four thousand, nine hundred sixteen".