664116741 has 12 divisors (see below), whose sum is σ = 964304640. Its totient is φ = 440425320.

The previous prime is 664116703. The next prime is 664116767. The reversal of 664116741 is 147611466.

It is a happy number.

664116741 is a `hidden beast` number, since 6 + 641 + 1 + 6 + 7 + 4 + 1 = 666.

664116741 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 664116741 - 2¹⁰ = 664115717 is a prime.

It is a super-2 number, since 2×664116741² = 882102091352922162, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 664116696 and 664116705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664116941) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 191451 + ... + 194888.

It is an arithmetic number, because the mean of its divisors is an integer number (80358720).

Almost surely, 2^664116741 is an apocalyptic number.

It is an amenable number.

664116741 is a deficient number, since it is larger than the sum of its proper divisors (300187899).

664116741 is a wasteful number, since it uses less digits than its factorization.

664116741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386536 (or 386533 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 664116741 is about 25770.4625686075. The cubic root of 664116741 is about 872.4652590552.

The spelling of 664116741 in words is "six hundred sixty-four million, one hundred sixteen thousand, seven hundred forty-one".