68199164 has 12 divisors (see below), whose sum is σ = 130198488. Its totient is φ = 30999600.

The previous prime is 68199149. The next prime is 68199167. The reversal of 68199164 is 46199186.

It is a super-2 number, since 2×68199164² = 9302251940597792, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44), and also a Moran number because the ratio is a prime number: 1549981 = 68199164 / (6 + 8 + 1 + 9 + 9 + 1 + 6 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68199167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 774947 + ... + 775034.

It is an arithmetic number, because the mean of its divisors is an integer number (10849874).

Almost surely, 2^68199164 is an apocalyptic number.

It is an amenable number.

68199164 is a deficient number, since it is larger than the sum of its proper divisors (61999324).

68199164 is a wasteful number, since it uses less digits than its factorization.

68199164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1549996 (or 1549994 counting only the distinct ones).

The product of its digits is 93312, while the sum is 44.

The square root of 68199164 is about 8258.2785131043. The cubic root of 68199164 is about 408.5636113671.

The spelling of 68199164 in words is "sixty-eight million, one hundred ninety-nine thousand, one hundred sixty-four".