662660611 has 4 divisors (see below), whose sum is σ = 671048800. Its totient is φ = 654272424.

The previous prime is 662660569. The next prime is 662660617. The reversal of 662660611 is 116066266.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 116066266 = 2 ⋅58033133.

It is a cyclic number.

It is not a de Polignac number, because 662660611 - 2¹⁵ = 662627843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (662660617) 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 in 3 ways as a sum of consecutive naturals, for example, 4193976 + ... + 4194133.

It is an arithmetic number, because the mean of its divisors is an integer number (167762200).

Almost surely, 2^662660611 is an apocalyptic number.

662660611 is a deficient number, since it is larger than the sum of its proper divisors (8388189).

662660611 is an equidigital number, since it uses as much as digits as its factorization.

662660611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8388188.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 662660611 is about 25742.1951472675. The cubic root of 662660611 is about 871.8271420929.

The spelling of 662660611 in words is "six hundred sixty-two million, six hundred sixty thousand, six hundred eleven".