660111741 has 8 divisors (see below), whose sum is σ = 977943360. Its totient is φ = 440074476.

The previous prime is 660111731. The next prime is 660111769. The reversal of 660111741 is 147111066.

660111741 is a `hidden beast` number, since 6 + 601 + 1 + 17 + 41 = 666.

660111741 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 660111741 - 2⁹ = 660111229 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 24448583 = 660111741 / (6 + 6 + 0 + 1 + 1 + 1 + 7 + 4 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660111701) 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, 12224265 + ... + 12224318.

It is an arithmetic number, because the mean of its divisors is an integer number (122242920).

Almost surely, 2^660111741 is an apocalyptic number.

It is an amenable number.

660111741 is a deficient number, since it is larger than the sum of its proper divisors (317831619).

660111741 is a wasteful number, since it uses less digits than its factorization.

660111741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24448592 (or 24448586 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 660111741 is about 25692.6398215520. The cubic root of 660111741 is about 870.7079018404.

The spelling of 660111741 in words is "six hundred sixty million, one hundred eleven thousand, seven hundred forty-one".