6612220505 has 16 divisors (see below), whose sum is σ = 8703834048. Its totient is φ = 4782312000.

The previous prime is 6612220469. The next prime is 6612220529. The reversal of 6612220505 is 5050222166.

It is not a de Polignac number, because 6612220505 - 2¹⁸ = 6611958361 is a prime.

It is a Duffinian 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 15 ways as a sum of consecutive naturals, for example, 322151 + ... + 342060.

It is an arithmetic number, because the mean of its divisors is an integer number (543989628).

Almost surely, 2^6612220505 is an apocalyptic number.

It is an amenable number.

6612220505 is a deficient number, since it is larger than the sum of its proper divisors (2091613543).

6612220505 is a wasteful number, since it uses less digits than its factorization.

6612220505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664408.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 6612220505 is about 81315.5612721206. The cubic root of 6612220505 is about 1876.9344661916.

The spelling of 6612220505 in words is "six billion, six hundred twelve million, two hundred twenty thousand, five hundred five".