256506032141 has 8 divisors (see below), whose sum is σ = 257655587904. Its totient is φ = 255357796960.

The previous prime is 256506032093. The next prime is 256506032149. The reversal of 256506032141 is 141230605652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 256506032141 - 2⁶ = 256506032077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256506032149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60230 + ... + 718776.

It is an arithmetic number, because the mean of its divisors is an integer number (32206948488).

Almost surely, 2^256506032141 is an apocalyptic number.

It is an amenable number.

256506032141 is a deficient number, since it is larger than the sum of its proper divisors (1149555763).

256506032141 is a wasteful number, since it uses less digits than its factorization.

256506032141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660291.

The product of its (nonzero) digits is 43200, while the sum is 35.

Adding to 256506032141 its reverse (141230605652), we get a palindrome (397736637793).

The spelling of 256506032141 in words is "two hundred fifty-six billion, five hundred six million, thirty-two thousand, one hundred forty-one".