68660319 has 96 divisors (see below), whose sum is σ = 126658560. Its totient is φ = 32659200.

The previous prime is 68660303. The next prime is 68660321. The reversal of 68660319 is 91306686.

It is a happy number.

It is not a de Polignac number, because 68660319 - 2⁴ = 68660303 is a prime.

It is a super-2 number, since 2×68660319² = 9428478810363522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68660219) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1125549 + ... + 1125609.

It is an arithmetic number, because the mean of its divisors is an integer number (1319360).

Almost surely, 2^68660319 is an apocalyptic number.

68660319 is a deficient number, since it is larger than the sum of its proper divisors (57998241).

68660319 is a wasteful number, since it uses less digits than its factorization.

68660319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141 (or 134 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 68660319 is about 8286.1522433516. The cubic root of 68660319 is about 409.4824303953.

The spelling of 68660319 in words is "sixty-eight million, six hundred sixty thousand, three hundred nineteen".