7220162880 has 448 divisors, whose sum is σ = 30056693760. Its totient is φ = 1596672000.

The previous prime is 7220162879. The next prime is 7220162891. The reversal of 7220162880 is 882610227.

It is a happy number.

7220162880 is a `hidden beast` number, since 7 + 2 + 20 + 1 + 628 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (448).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1872955 + ... + 1876805.

Almost surely, 2^7220162880 is an apocalyptic number.

7220162880 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7220162880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15028346880).

7220162880 is an abundant number, since it is smaller than the sum of its proper divisors (22836530880).

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

7220162880 is a wasteful number, since it uses less digits than its factorization.

7220162880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3915 (or 3899 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 7220162880 is about 84971.5415889344. The cubic root of 7220162880 is about 1932.7795935615.

The spelling of 7220162880 in words is "seven billion, two hundred twenty million, one hundred sixty-two thousand, eight hundred eighty".