68478166 has 8 divisors (see below), whose sum is σ = 108123480. Its totient is φ = 32437008.

The previous prime is 68478143. The next prime is 68478167. The reversal of 68478166 is 66187486.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×68478166³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68478167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 900991 + ... + 901066.

It is an arithmetic number, because the mean of its divisors is an integer number (13515435).

Almost surely, 2^68478166 is an apocalyptic number.

68478166 is a deficient number, since it is larger than the sum of its proper divisors (39645314).

68478166 is a wasteful number, since it uses less digits than its factorization.

68478166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1802078.

The product of its digits is 387072, while the sum is 46.

The square root of 68478166 is about 8275.1535333189. The cubic root of 68478166 is about 409.1199963545.

It can be divided in two parts, 68478 and 166, that added together give a square (68644 = 262²).

The spelling of 68478166 in words is "sixty-eight million, four hundred seventy-eight thousand, one hundred sixty-six".