7213556560 has 120 divisors (see below), whose sum is σ = 19745673696. Its totient is φ = 2443311360.

The previous prime is 7213556551. The next prime is 7213556579. The reversal of 7213556560 is 656553127.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 314275 + ... + 336445.

Almost surely, 2^7213556560 is an apocalyptic number.

7213556560 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 7213556560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9872836848).

7213556560 is an abundant number, since it is smaller than the sum of its proper divisors (12532117136).

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

7213556560 is a wasteful number, since it uses less digits than its factorization.

7213556560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22281 (or 22268 counting only the distinct ones).

The product of its (nonzero) digits is 189000, while the sum is 40.

The square root of 7213556560 is about 84932.6589716818. The cubic root of 7213556560 is about 1932.1899274181.

The spelling of 7213556560 in words is "seven billion, two hundred thirteen million, five hundred fifty-six thousand, five hundred sixty".