68666302 has 24 divisors (see below), whose sum is σ = 109408320. Its totient is φ = 32287680.

The previous prime is 68666263. The next prime is 68666303. The reversal of 68666302 is 20366686.

It is a super-2 number, since 2×68666302² = 9430122060710408, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68666303) 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, 84474 + ... + 85282.

It is an arithmetic number, because the mean of its divisors is an integer number (4558680).

Almost surely, 2^68666302 is an apocalyptic number.

68666302 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

68666302 is a deficient number, since it is larger than the sum of its proper divisors (40742018).

68666302 is a wasteful number, since it uses less digits than its factorization.

68666302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916 (or 879 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 68666302 is about 8286.5132595079. The cubic root of 68666302 is about 409.4943240298.

The spelling of 68666302 in words is "sixty-eight million, six hundred sixty-six thousand, three hundred two".