67500066 has 8 divisors (see below), whose sum is σ = 135000144. Its totient is φ = 22500020.

The previous prime is 67500031. The next prime is 67500073. The reversal of 67500066 is 66000576.

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

67500066 is an admirable number.

It is a super-3 number, since 3×67500066³ (a number of 24 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5625000 + ... + 5625011.

It is an arithmetic number, because the mean of its divisors is an integer number (16875018).

Almost surely, 2^67500066 is an apocalyptic number.

67500066 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

67500066 is a wasteful number, since it uses less digits than its factorization.

67500066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11250016.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 67500066 is about 8215.8423792086. The cubic root of 67500066 is about 407.1627751941.

The spelling of 67500066 in words is "sixty-seven million, five hundred thousand, sixty-six".