2256143433140 has 12 divisors (see below), whose sum is σ = 4737901209636. Its totient is φ = 902457373248.

The previous prime is 2256143433101. The next prime is 2256143433157. The reversal of 2256143433140 is 413343416522.

It can be written as a sum of positive squares in 2 ways, for example, as 1429942423204 + 826201009936 = 1195802^2 + 908956^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2256143433094 and 2256143433103.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56403585809 + ... + 56403585848.

It is an arithmetic number, because the mean of its divisors is an integer number (394825100803).

Almost surely, 2^{2256143433140} is an apocalyptic number.

2256143433140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2256143433140 is an abundant number, since it is smaller than the sum of its proper divisors (2481757776496).

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

2256143433140 is a wasteful number, since it uses less digits than its factorization.

2256143433140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112807171666 (or 112807171664 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 38.

Adding to 2256143433140 its reverse (413343416522), we get a palindrome (2669486849662).

The spelling of 2256143433140 in words is "two trillion, two hundred fifty-six billion, one hundred forty-three million, four hundred thirty-three thousand, one hundred forty".