660601554041 has 16 divisors (see below), whose sum is σ = 776218705920. Its totient is φ = 554259976320.

The previous prime is 660601553977. The next prime is 660601554097. The reversal of 660601554041 is 140455106066.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 660601554041 - 2⁶ = 660601553977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 660601553986 and 660601554004.

It is not an unprimeable number, because it can be changed into a prime (660601554941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 502445 + ... + 1254453.

It is an arithmetic number, because the mean of its divisors is an integer number (48513669120).

Almost surely, 2^660601554041 is an apocalyptic number.

It is an amenable number.

660601554041 is a deficient number, since it is larger than the sum of its proper divisors (115617151879).

660601554041 is a wasteful number, since it uses less digits than its factorization.

660601554041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758176.

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 660601554041 in words is "six hundred sixty billion, six hundred one million, five hundred fifty-four thousand, forty-one".