256424466226635 has 96 divisors (see below), whose sum is σ = 508838643855360. Its totient is φ = 117020991838464.

The previous prime is 256424466226633. The next prime is 256424466226639. The reversal of 256424466226635 is 536622664424652.

256424466226635 is a `hidden beast` number, since 2 + 5 + 6 + 42 + 446 + 62 + 2 + 66 + 35 = 666.

It is not a de Polignac number, because 256424466226635 - 2¹ = 256424466226633 is a prime.

It is a super-2 number, since 2×256424466226635² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (256424466226633) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1114546182 + ... + 1114776228.

It is an arithmetic number, because the mean of its divisors is an integer number (5300402540160).

Almost surely, 2^{256424466226635} is an apocalyptic number.

256424466226635 is a deficient number, since it is larger than the sum of its proper divisors (252414177628725).

256424466226635 is a wasteful number, since it uses less digits than its factorization.

256424466226635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236137 (or 236134 counting only the distinct ones).

The product of its digits is 597196800, while the sum is 63.

The spelling of 256424466226635 in words is "two hundred fifty-six trillion, four hundred twenty-four billion, four hundred sixty-six million, two hundred twenty-six thousand, six hundred thirty-five".