6520402663234 has 16 divisors (see below), whose sum is σ = 10353165419520. Its totient is φ = 3074576394960.

The previous prime is 6520402663207. The next prime is 6520402663253. The reversal of 6520402663234 is 4323662040256.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1307215362 + ... + 1307220349.

It is an arithmetic number, because the mean of its divisors is an integer number (647072838720).

Almost surely, 2^{6520402663234} is an apocalyptic number.

6520402663234 is a deficient number, since it is larger than the sum of its proper divisors (3832762756286).

6520402663234 is a wasteful number, since it uses less digits than its factorization.

6520402663234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2614435785.

The product of its (nonzero) digits is 1244160, while the sum is 43.

The spelling of 6520402663234 in words is "six trillion, five hundred twenty billion, four hundred two million, six hundred sixty-three thousand, two hundred thirty-four".