215060656 has 10 divisors (see below), whose sum is σ = 416680052. Its totient is φ = 107530320.

The previous prime is 215060653. The next prime is 215060669. The reversal of 215060656 is 656060512.

It is not an unprimeable number, because it can be changed into a prime (215060653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6720630 + ... + 6720661.

Almost surely, 2^215060656 is an apocalyptic number.

It is an amenable number.

215060656 is a deficient number, since it is larger than the sum of its proper divisors (201619396).

215060656 is a wasteful number, since it uses less digits than its factorization.

215060656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13441299 (or 13441293 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 215060656 is about 14664.9465051871. The cubic root of 215060656 is about 599.1289731694.

The spelling of 215060656 in words is "two hundred fifteen million, sixty thousand, six hundred fifty-six".