256216144132 has 48 divisors (see below), whose sum is σ = 483981777664. Its totient is φ = 117981360000.

The previous prime is 256216144091. The next prime is 256216144133. The reversal of 256216144132 is 231441612652.

It is a junction number, because it is equal to n+sod(n) for n = 256216144091 and 256216144100.

It is not an unprimeable number, because it can be changed into a prime (256216144133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83701882 + ... + 83704942.

Almost surely, 2^256216144132 is an apocalyptic number.

It is an amenable number.

256216144132 is a deficient number, since it is larger than the sum of its proper divisors (227765633532).

256216144132 is a wasteful number, since it uses less digits than its factorization.

256216144132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6260 (or 6258 counting only the distinct ones).

The product of its digits is 69120, while the sum is 37.

Adding to 256216144132 its reverse (231441612652), we get a palindrome (487657756784).

The spelling of 256216144132 in words is "two hundred fifty-six billion, two hundred sixteen million, one hundred forty-four thousand, one hundred thirty-two".