256436225334 has 12 divisors (see below), whose sum is σ = 555611821596. Its totient is φ = 85478741772.

The previous prime is 256436225329. The next prime is 256436225363. The reversal of 256436225334 is 433522634652.

It is a happy number.

256436225334 is a `hidden beast` number, since 2 + 5 + 6 + 4 + 362 + 253 + 34 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 256436225334.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7123228464 + ... + 7123228499.

It is an arithmetic number, because the mean of its divisors is an integer number (46300985133).

Almost surely, 2^256436225334 is an apocalyptic number.

256436225334 is an abundant number, since it is smaller than the sum of its proper divisors (299175596262).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

256436225334 is a wasteful number, since it uses less digits than its factorization.

256436225334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14246456971 (or 14246456968 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 45.

Adding to 256436225334 its reverse (433522634652), we get a palindrome (689958859986).

The spelling of 256436225334 in words is "two hundred fifty-six billion, four hundred thirty-six million, two hundred twenty-five thousand, three hundred thirty-four".