66254756 has 12 divisors (see below), whose sum is σ = 116428620. Its totient is φ = 32989440.

The previous prime is 66254737. The next prime is 66254761. The reversal of 66254756 is 65745266.

66254756 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 45697600 + 20557156 = 6760^2 + 4534^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

66254756 is strictly pandigital in base 9.

It is an unprimeable number.

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, 33401 + ... + 35328.

It is an arithmetic number, because the mean of its divisors is an integer number (9702385).

Almost surely, 2^66254756 is an apocalyptic number.

It is an amenable number.

66254756 is a deficient number, since it is larger than the sum of its proper divisors (50173864).

66254756 is a wasteful number, since it uses less digits than its factorization.

66254756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68974 (or 68972 counting only the distinct ones).

The product of its digits is 302400, while the sum is 41.

The square root of 66254756 is about 8139.7024515642. The cubic root of 66254756 is about 404.6432992009.

The spelling of 66254756 in words is "sixty-six million, two hundred fifty-four thousand, seven hundred fifty-six".