10203643225446 has 96 divisors (see below), whose sum is σ = 23011587022464. Its totient is φ = 2991258547200.

The previous prime is 10203643225439. The next prime is 10203643225519. The reversal of 10203643225446 is 64452234630201.

It is a happy number.

10203643225446 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×10203643225446² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10203643225398 and 10203643225407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 198941721 + ... + 198993003.

It is an arithmetic number, because the mean of its divisors is an integer number (239704031484).

Almost surely, 2^{10203643225446} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10203643225446, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11505793511232).

10203643225446 is an abundant number, since it is smaller than the sum of its proper divisors (12807943797018).

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

10203643225446 is a wasteful number, since it uses less digits than its factorization.

10203643225446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54498 (or 54467 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 42.

Adding to 10203643225446 its reverse (64452234630201), we get a palindrome (74655877855647).

The spelling of 10203643225446 in words is "ten trillion, two hundred three billion, six hundred forty-three million, two hundred twenty-five thousand, four hundred forty-six".