649160068 has 12 divisors (see below), whose sum is σ = 1141415632. Its totient is φ = 323041320.

The previous prime is 649160063. The next prime is 649160077. The reversal of 649160068 is 860061946.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 649160068.

It is not an unprimeable number, because it can be changed into a prime (649160063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 383730 + ... + 385417.

Almost surely, 2^649160068 is an apocalyptic number.

It is an amenable number.

649160068 is a deficient number, since it is larger than the sum of its proper divisors (492255564).

649160068 is a wasteful number, since it uses less digits than its factorization.

649160068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769362 (or 769360 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 649160068 is about 25478.6198213326. The cubic root of 649160068 is about 865.8658255645.

The spelling of 649160068 in words is "six hundred forty-nine million, one hundred sixty thousand, sixty-eight".