660541451133 has 8 divisors (see below), whose sum is σ = 880889361696. Its totient is φ = 440277254000.

The previous prime is 660541451131. The next prime is 660541451147. The reversal of 660541451133 is 331154145066.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 660541451133 - 2¹ = 660541451131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 660541451091 and 660541451100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660541451131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20909943 + ... + 20941508.

It is an arithmetic number, because the mean of its divisors is an integer number (110111170212).

Almost surely, 2^660541451133 is an apocalyptic number.

It is an amenable number.

660541451133 is a deficient number, since it is larger than the sum of its proper divisors (220347910563).

660541451133 is a wasteful number, since it uses less digits than its factorization.

660541451133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41856715.

The product of its (nonzero) digits is 129600, while the sum is 39.

Adding to 660541451133 its reverse (331154145066), we get a palindrome (991695596199).

The spelling of 660541451133 in words is "six hundred sixty billion, five hundred forty-one million, four hundred fifty-one thousand, one hundred thirty-three".