6400103522 has 6 divisors (see below), whose sum is σ = 9600324993. Its totient is φ = 3199995192.

The previous prime is 6400103519. The next prime is 6400103537. The reversal of 6400103522 is 2253010046.

It can be written as a sum of positive squares in 2 ways, for example, as 4257432001 + 2142671521 = 65249^2 + 46289^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=56569.

It is a super-2 number, since 2×6400103522² = 81922650184633608968, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 84854 + ... + 141422.

Almost surely, 2^6400103522 is an apocalyptic number.

6400103522 is a deficient number, since it is larger than the sum of its proper divisors (3200221471).

6400103522 is an frugal number, since it uses more digits than its factorization.

6400103522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113140 (or 56571 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 6400103522 is about 80000.6470098836. The cubic root of 6400103522 is about 1856.6455439445.

Adding to 6400103522 its reverse (2253010046), we get a palindrome (8653113568).

The spelling of 6400103522 in words is "six billion, four hundred million, one hundred three thousand, five hundred twenty-two".