256966101669652 has 6 divisors (see below), whose sum is σ = 449690677921898. Its totient is φ = 128483050834824.

The previous prime is 256966101669643. The next prime is 256966101669661.

256966101669652 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (256966101669643) and next prime (256966101669661).

It can be written as a sum of positive squares in only one way, i.e., 149254209377296 + 107711892292356 = 12216964^2 + 10378434^2 .

It is a super-2 number, since 2×256966101669652² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32120762708703 + ... + 32120762708710.

Almost surely, 2^{256966101669652} is an apocalyptic number.

It is an amenable number.

256966101669652 is a deficient number, since it is larger than the sum of its proper divisors (192724576252246).

256966101669652 is a wasteful number, since it uses less digits than its factorization.

256966101669652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64241525417417 (or 64241525417415 counting only the distinct ones).

The product of its (nonzero) digits is 377913600, while the sum is 70.

The spelling of 256966101669652 in words is "two hundred fifty-six trillion, nine hundred sixty-six billion, one hundred one million, six hundred sixty-nine thousand, six hundred fifty-two".