66701236 has 12 divisors (see below), whose sum is σ = 133402528. Its totient is φ = 28586232.

The previous prime is 66701231. The next prime is 66701273. The reversal of 66701236 is 63210766.

66701236 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 66701198 and 66701207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66701231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1191066 + ... + 1191121.

Almost surely, 2^66701236 is an apocalyptic number.

It is an amenable number.

66701236 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.

66701236 is a wasteful number, since it uses less digits than its factorization.

66701236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2382198 (or 2382196 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 66701236 is about 8167.0824656055. The cubic root of 66701236 is about 405.5502068170.

The spelling of 66701236 in words is "sixty-six million, seven hundred one thousand, two hundred thirty-six".