6403253066511 has 8 divisors (see below), whose sum is σ = 9757338006144. Its totient is φ = 3659001752280.

The previous prime is 6403253066477. The next prime is 6403253066519. The reversal of 6403253066511 is 1156603523046.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6403253066511 - 2⁶ = 6403253066447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6403253066519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152458406325 + ... + 152458406366.

It is an arithmetic number, because the mean of its divisors is an integer number (1219667250768).

Almost surely, 2^{6403253066511} is an apocalyptic number.

6403253066511 is a deficient number, since it is larger than the sum of its proper divisors (3354084939633).

6403253066511 is a wasteful number, since it uses less digits than its factorization.

6403253066511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304916812701.

The product of its (nonzero) digits is 388800, while the sum is 42.

Adding to 6403253066511 its reverse (1156603523046), we get a palindrome (7559856589557).

The spelling of 6403253066511 in words is "six trillion, four hundred three billion, two hundred fifty-three million, sixty-six thousand, five hundred eleven".