256061533222 has 16 divisors (see below), whose sum is σ = 419185700352. Its totient is φ = 116342739720.

The previous prime is 256061533207. The next prime is 256061533279. The reversal of 256061533222 is 222335160652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2389698 + ... + 2494549.

It is an arithmetic number, because the mean of its divisors is an integer number (26199106272).

Almost surely, 2^256061533222 is an apocalyptic number.

256061533222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

256061533222 is a deficient number, since it is larger than the sum of its proper divisors (163124167130).

256061533222 is a wasteful number, since it uses less digits than its factorization.

256061533222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4886643.

The product of its (nonzero) digits is 129600, while the sum is 37.

Adding to 256061533222 its reverse (222335160652), we get a palindrome (478396693874).

The spelling of 256061533222 in words is "two hundred fifty-six billion, sixty-one million, five hundred thirty-three thousand, two hundred twenty-two".