66270768 has 40 divisors (see below), whose sum is σ = 171975600. Its totient is φ = 21990144.

The previous prime is 66270749. The next prime is 66270779. The reversal of 66270768 is 86707266.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7978 + ... + 14006.

It is an arithmetic number, because the mean of its divisors is an integer number (4299390).

Almost surely, 2^66270768 is an apocalyptic number.

It is an amenable number.

66270768 is an abundant number, since it is smaller than the sum of its proper divisors (105704832).

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

66270768 is a wasteful number, since it uses less digits than its factorization.

66270768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6269 (or 6263 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 66270768 is about 8140.6859661825. The cubic root of 66270768 is about 404.6758937246.

The spelling of 66270768 in words is "sixty-six million, two hundred seventy thousand, seven hundred sixty-eight".