10643306402225 has 72 divisors (see below), whose sum is σ = 15387166914240. Its totient is φ = 7153779830400.

The previous prime is 10643306402161. The next prime is 10643306402257. The reversal of 10643306402225 is 52220460334601.

It is not a de Polignac number, because 10643306402225 - 2⁶ = 10643306402161 is a prime.

It is a super-2 number, since 2×10643306402225² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 152581406 + ... + 152651144.

Almost surely, 2^{10643306402225} is an apocalyptic number.

It is an amenable number.

10643306402225 is a deficient number, since it is larger than the sum of its proper divisors (4743860512015).

10643306402225 is an equidigital number, since it uses as much as digits as its factorization.

10643306402225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70071 (or 69995 counting only the distinct ones).

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

Adding to 10643306402225 its reverse (52220460334601), we get a palindrome (62863766736826).

The spelling of 10643306402225 in words is "ten trillion, six hundred forty-three billion, three hundred six million, four hundred two thousand, two hundred twenty-five".