68451066 has 12 divisors (see below), whose sum is σ = 148310682. Its totient is φ = 22817016.

The previous prime is 68451041. The next prime is 68451067. The reversal of 68451066 is 66015486.

68451066 is a `hidden beast` number, since 6 + 84 + 510 + 66 = 666.

It can be written as a sum of positive squares in only one way, i.e., 44156025 + 24295041 = 6645^2 + 4929^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 68451066.

It is not an unprimeable number, because it can be changed into a prime (68451067) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1901401 + ... + 1901436.

Almost surely, 2^68451066 is an apocalyptic number.

68451066 is an abundant number, since it is smaller than the sum of its proper divisors (79859616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68451066 is a wasteful number, since it uses less digits than its factorization.

68451066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3802845 (or 3802842 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 68451066 is about 8273.5159394299. The cubic root of 68451066 is about 409.0660199538.

The spelling of 68451066 in words is "sixty-eight million, four hundred fifty-one thousand, sixty-six".