6623140523 has 2 divisors, whose sum is σ = 6623140524. Its totient is φ = 6623140522.

The previous prime is 6623140507. The next prime is 6623140561. The reversal of 6623140523 is 3250413266.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6623140523 - 2⁴ = 6623140507 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6623140523.

It is not a weakly prime, because it can be changed into another prime (6623140583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3311570261 + 3311570262.

It is an arithmetic number, because the mean of its divisors is an integer number (3311570262).

Almost surely, 2^6623140523 is an apocalyptic number.

6623140523 is a deficient number, since it is larger than the sum of its proper divisors (1).

6623140523 is an equidigital number, since it uses as much as digits as its factorization.

6623140523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 6623140523 is about 81382.6795024592. The cubic root of 6623140523 is about 1877.9671442665.

Adding to 6623140523 its reverse (3250413266), we get a palindrome (9873553789).

The spelling of 6623140523 in words is "six billion, six hundred twenty-three million, one hundred forty thousand, five hundred twenty-three".