656030455403 has 4 divisors (see below), whose sum is σ = 658644122808. Its totient is φ = 653416788000.

The previous prime is 656030455351. The next prime is 656030455429. The reversal of 656030455403 is 304554030656.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 656030455403 - 2¹⁰ = 656030454379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (656030455103) 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 3 ways as a sum of consecutive naturals, for example, 1306833326 + ... + 1306833827.

It is an arithmetic number, because the mean of its divisors is an integer number (164661030702).

Almost surely, 2^656030455403 is an apocalyptic number.

656030455403 is a deficient number, since it is larger than the sum of its proper divisors (2613667405).

656030455403 is a wasteful number, since it uses less digits than its factorization.

656030455403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2613667404.

The product of its (nonzero) digits is 648000, while the sum is 41.

The spelling of 656030455403 in words is "six hundred fifty-six billion, thirty million, four hundred fifty-five thousand, four hundred three".