7216672320 has 1008 divisors, whose sum is σ = 30987552960. Its totient is φ = 1587548160.

The previous prime is 7216672259. The next prime is 7216672361. The reversal of 7216672320 is 232766127.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 122316451 + ... + 122316509.

It is an arithmetic number, because the mean of its divisors is an integer number (30741620).

Almost surely, 2^7216672320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7216672320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15493776480).

7216672320 is an abundant number, since it is smaller than the sum of its proper divisors (23770880640).

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

7216672320 is a wasteful number, since it uses less digits than its factorization.

7216672320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126 (or 93 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 7216672320 is about 84950.9995232546. Note that the first 3 decimals coincide. The cubic root of 7216672320 is about 1932.4680784000.

The spelling of 7216672320 in words is "seven billion, two hundred sixteen million, six hundred seventy-two thousand, three hundred twenty".