2256645020450 has 96 divisors (see below), whose sum is σ = 4538199536640. Its totient is φ = 832050316800.

The previous prime is 2256645020419. The next prime is 2256645020453. The reversal of 2256645020450 is 540205466522.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a junction number, because it is equal to n+sod(n) for n = 2256645020398 and 2256645020407.

It is not an unprimeable number, because it can be changed into a prime (2256645020453) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14450687 + ... + 14606013.

It is an arithmetic number, because the mean of its divisors is an integer number (47272911840).

Almost surely, 2^{2256645020450} is an apocalyptic number.

2256645020450 is an abundant number, since it is smaller than the sum of its proper divisors (2281554516190).

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

2256645020450 is a wasteful number, since it uses less digits than its factorization.

2256645020450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155772 (or 155767 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 41.

The spelling of 2256645020450 in words is "two trillion, two hundred fifty-six billion, six hundred forty-five million, twenty thousand, four hundred fifty".