256323652101 has 24 divisors (see below), whose sum is σ = 414820265184. Its totient is φ = 151149080160.

The previous prime is 256323652097. The next prime is 256323652103. The reversal of 256323652101 is 101256323652.

256323652101 is a `hidden beast` number, since 2 + 5 + 632 + 3 + 6 + 5 + 2 + 10 + 1 = 666.

It is not a de Polignac number, because 256323652101 - 2² = 256323652097 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256323652103) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 34984551 + ... + 34991876.

It is an arithmetic number, because the mean of its divisors is an integer number (17284177716).

Almost surely, 2^256323652101 is an apocalyptic number.

It is an amenable number.

256323652101 is a deficient number, since it is larger than the sum of its proper divisors (158496613083).

256323652101 is a wasteful number, since it uses less digits than its factorization.

256323652101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69976481 (or 69976478 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

Adding to 256323652101 its reverse (101256323652), we get a palindrome (357579975753).

It can be divided in two parts, 256323652 and 101, that multiplied together give a palindrome (25888688852).

The spelling of 256323652101 in words is "two hundred fifty-six billion, three hundred twenty-three million, six hundred fifty-two thousand, one hundred one".