9956530623 has 16 divisors (see below), whose sum is σ = 14306518016. Its totient is φ = 6122826720.

The previous prime is 9956530567. The next prime is 9956530627. The reversal of 9956530623 is 3260356599.

It is not a de Polignac number, because 9956530623 - 2²¹ = 9954433471 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 (9956530627) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 31783 + ... + 144648.

It is an arithmetic number, because the mean of its divisors is an integer number (894157376).

Almost surely, 2^9956530623 is an apocalyptic number.

9956530623 is a deficient number, since it is larger than the sum of its proper divisors (4349987393).

9956530623 is a wasteful number, since it uses less digits than its factorization.

9956530623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177894.

The product of its (nonzero) digits is 1312200, while the sum is 48.

The square root of 9956530623 is about 99782.4164018892. The cubic root of 9956530623 is about 2151.3084246275.

The spelling of 9956530623 in words is "nine billion, nine hundred fifty-six million, five hundred thirty thousand, six hundred twenty-three".