256614166611272 has 8 divisors (see below), whose sum is σ = 481151562396150. Its totient is φ = 128307083305632.

The previous prime is 256614166611259. The next prime is 256614166611289. The reversal of 256614166611272 is 272116661416652.

It can be written as a sum of positive squares in only one way, i.e., 221694411032836 + 34919755578436 = 14889406^2 + 5909294^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 16038385413197 + ... + 16038385413212.

Almost surely, 2^{256614166611272} is an apocalyptic number.

It is an amenable number.

256614166611272 is a deficient number, since it is larger than the sum of its proper divisors (224537395784878).

256614166611272 is a wasteful number, since it uses less digits than its factorization.

256614166611272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32076770826415 (or 32076770826411 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 56.

The spelling of 256614166611272 in words is "two hundred fifty-six trillion, six hundred fourteen billion, one hundred sixty-six million, six hundred eleven thousand, two hundred seventy-two".