23656163546 has 8 divisors (see below), whose sum is σ = 35487112404. Its totient is φ = 11827126080.

The previous prime is 23656163539. The next prime is 23656163551. The reversal of 23656163546 is 64536165632.

It can be written as a sum of positive squares in 2 ways, for example, as 21429739321 + 2226424225 = 146389^2 + 47185^2 .

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

It is a super-2 number, since 2×23656163546² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 23656163546.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 446495 + ... + 496658.

Almost surely, 2^23656163546 is an apocalyptic number.

23656163546 is a deficient number, since it is larger than the sum of its proper divisors (11830948858).

23656163546 is a wasteful number, since it uses less digits than its factorization.

23656163546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 955696.

The product of its digits is 2332800, while the sum is 47.

The spelling of 23656163546 in words is "twenty-three billion, six hundred fifty-six million, one hundred sixty-three thousand, five hundred forty-six".