256632537226471 has 32 divisors (see below), whose sum is σ = 301694496768000. Its totient is φ = 213777823764960.

The previous prime is 256632537226451. The next prime is 256632537226529. The reversal of 256632537226471 is 174622735236652.

It is not a de Polignac number, because 256632537226471 - 2¹⁹ = 256632536702183 is a prime.

It is a super-3 number, since 3×256632537226471³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256632537226411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2122680 + ... + 22754578.

It is an arithmetic number, because the mean of its divisors is an integer number (9427953024000).

Almost surely, 2^{256632537226471} is an apocalyptic number.

256632537226471 is a deficient number, since it is larger than the sum of its proper divisors (45061959541529).

256632537226471 is a wasteful number, since it uses less digits than its factorization.

256632537226471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20632339.

The product of its digits is 152409600, while the sum is 61.

The spelling of 256632537226471 in words is "two hundred fifty-six trillion, six hundred thirty-two billion, five hundred thirty-seven million, two hundred twenty-six thousand, four hundred seventy-one".