660601113 has 12 divisors (see below), whose sum is σ = 935662320. Its totient is φ = 414494272.

The previous prime is 660601087. The next prime is 660601129. The reversal of 660601113 is 311106066.

It is not a de Polignac number, because 660601113 - 2⁶ = 660601049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (660601313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 380103 + ... + 381836.

It is an arithmetic number, because the mean of its divisors is an integer number (77971860).

Almost surely, 2^660601113 is an apocalyptic number.

It is an amenable number.

660601113 is a deficient number, since it is larger than the sum of its proper divisors (275061207).

660601113 is a wasteful number, since it uses less digits than its factorization.

660601113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761976 (or 761959 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 660601113 is about 25702.1616406091. The cubic root of 660601113 is about 870.9230143172.

Adding to 660601113 its reverse (311106066), we get a palindrome (971707179).

The spelling of 660601113 in words is "six hundred sixty million, six hundred one thousand, one hundred thirteen".