660462226 has 4 divisors (see below), whose sum is σ = 990693342. Its totient is φ = 330231112.

The previous prime is 660462221. The next prime is 660462251. The reversal of 660462226 is 622264066.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 427869225 + 232593001 = 20685^2 + 15251^2 .

It is a junction number, because it is equal to n+sod(n) for n = 660462191 and 660462200.

It is not an unprimeable number, because it can be changed into a prime (660462221) by changing a digit.

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 as a sum of consecutive naturals, namely, 165115555 + ... + 165115558.

Almost surely, 2^660462226 is an apocalyptic number.

660462226 is a deficient number, since it is larger than the sum of its proper divisors (330231116).

660462226 is a wasteful number, since it uses less digits than its factorization.

660462226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330231115.

The product of its (nonzero) digits is 41472, while the sum is 34.

The square root of 660462226 is about 25699.4596441248. The cubic root of 660462226 is about 870.8619747779.

The spelling of 660462226 in words is "six hundred sixty million, four hundred sixty-two thousand, two hundred twenty-six".