523656646223403 has 64 divisors (see below), whose sum is σ = 873577281024000. Its totient is φ = 271067004524160.

The previous prime is 523656646223377. The next prime is 523656646223453. The reversal of 523656646223403 is 304322646656325.

It is not a de Polignac number, because 523656646223403 - 2⁸ = 523656646223147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (523656646223453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 117368008 + ... + 121747946.

It is an arithmetic number, because the mean of its divisors is an integer number (13649645016000).

Almost surely, 2^{523656646223403} is an apocalyptic number.

523656646223403 is a deficient number, since it is larger than the sum of its proper divisors (349920634800597).

523656646223403 is a wasteful number, since it uses less digits than its factorization.

523656646223403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4381792.

The product of its (nonzero) digits is 111974400, while the sum is 57.

The spelling of 523656646223403 in words is "five hundred twenty-three trillion, six hundred fifty-six billion, six hundred forty-six million, two hundred twenty-three thousand, four hundred three".