656006424191 has 8 divisors (see below), whose sum is σ = 678636403200. Its totient is φ = 633377049760.

The previous prime is 656006424163. The next prime is 656006424217. The reversal of 656006424191 is 191424600656.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 656006424191 - 2¹⁰ = 656006423167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (656006424121) 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 7 ways as a sum of consecutive naturals, for example, 3870281 + ... + 4036221.

It is an arithmetic number, because the mean of its divisors is an integer number (84829550400).

Almost surely, 2^656006424191 is an apocalyptic number.

656006424191 is a deficient number, since it is larger than the sum of its proper divisors (22629979009).

656006424191 is a wasteful number, since it uses less digits than its factorization.

656006424191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302289.

The product of its (nonzero) digits is 311040, while the sum is 44.

The spelling of 656006424191 in words is "six hundred fifty-six billion, six million, four hundred twenty-four thousand, one hundred ninety-one".