660136412126003 has 4 divisors (see below), whose sum is σ = 674181867703200. Its totient is φ = 646090956548808.

The previous prime is 660136412125969. The next prime is 660136412126011. The reversal of 660136412126003 is 300621214631066.

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

It is a cyclic number.

It is not a de Polignac number, because 660136412126003 - 2⁴⁴ = 642544226081587 is a prime.

It is a super-2 number, since 2×660136412126003² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (660136412126803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7022727788528 + ... + 7022727788621.

It is an arithmetic number, because the mean of its divisors is an integer number (168545466925800).

Almost surely, 2^{660136412126003} is an apocalyptic number.

660136412126003 is a deficient number, since it is larger than the sum of its proper divisors (14045455577197).

660136412126003 is a wasteful number, since it uses less digits than its factorization.

660136412126003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14045455577196.

The product of its (nonzero) digits is 186624, while the sum is 41.

Adding to 660136412126003 its reverse (300621214631066), we get a palindrome (960757626757069).

The spelling of 660136412126003 in words is "six hundred sixty trillion, one hundred thirty-six billion, four hundred twelve million, one hundred twenty-six thousand, three".