66830738413256 has 32 divisors (see below), whose sum is σ = 128037751947000. Its totient is φ = 32690950955520.

The previous prime is 66830738413207. The next prime is 66830738413279. The reversal of 66830738413256 is 65231483703866.

66830738413256 is digitally balanced in base 2, 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 4 ways, for example, as 66815354972356 + 15383440900 = 8174066^2 + 124030^2 .

It is a super-2 number, since 2×66830738413256² (a number of 28 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225668165 + ... + 225964116.

Almost surely, 2^{66830738413256} is an apocalyptic number.

It is an amenable number.

66830738413256 is a deficient number, since it is larger than the sum of its proper divisors (61207013533744).

66830738413256 is a wasteful number, since it uses less digits than its factorization.

66830738413256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451632689 (or 451632685 counting only the distinct ones).

The product of its (nonzero) digits is 104509440, while the sum is 62.

The spelling of 66830738413256 in words is "sixty-six trillion, eight hundred thirty billion, seven hundred thirty-eight million, four hundred thirteen thousand, two hundred fifty-six".