662750066 has 32 divisors (see below), whose sum is σ = 1155710592. Its totient is φ = 281698560.

The previous prime is 662750057. The next prime is 662750069. The reversal of 662750066 is 660057266.

It is not an unprimeable number, because it can be changed into a prime (662750069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53075 + ... + 64361.

It is an arithmetic number, because the mean of its divisors is an integer number (36115956).

Almost surely, 2^662750066 is an apocalyptic number.

662750066 is a deficient number, since it is larger than the sum of its proper divisors (492960526).

662750066 is a wasteful number, since it uses less digits than its factorization.

662750066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11474.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 662750066 is about 25743.9326055675. The cubic root of 662750066 is about 871.8663707149.

The spelling of 662750066 in words is "six hundred sixty-two million, seven hundred fifty thousand, sixty-six".