7215407066 has 8 divisors (see below), whose sum is σ = 12369269280. Its totient is φ = 3092317308.

The previous prime is 7215407039. The next prime is 7215407071. The reversal of 7215407066 is 6607045127.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 257693096 + ... + 257693123.

It is an arithmetic number, because the mean of its divisors is an integer number (1546158660).

Almost surely, 2^7215407066 is an apocalyptic number.

7215407066 is a deficient number, since it is larger than the sum of its proper divisors (5153862214).

7215407066 is a wasteful number, since it uses less digits than its factorization.

7215407066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515386228.

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 7215407066 is about 84943.5522332331. The cubic root of 7215407066 is about 1932.3551359539.

The spelling of 7215407066 in words is "seven billion, two hundred fifteen million, four hundred seven thousand, sixty-six".