23656347606109 has 2 divisors, whose sum is σ = 23656347606110. Its totient is φ = 23656347606108.

The previous prime is 23656347606071. The next prime is 23656347606131. The reversal of 23656347606109 is 90160674365632.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20405574666009 + 3250772940100 = 4517253^2 + 1802990^2 .

It is a cyclic number.

It is not a de Polignac number, because 23656347606109 - 2³¹ = 23654200122461 is a prime.

It is a super-2 number, since 2×23656347606109² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23656347636109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11828173803054 + 11828173803055.

It is an arithmetic number, because the mean of its divisors is an integer number (11828173803055).

Almost surely, 2^{23656347606109} is an apocalyptic number.

It is an amenable number.

23656347606109 is a deficient number, since it is larger than the sum of its proper divisors (1).

23656347606109 is an equidigital number, since it uses as much as digits as its factorization.

23656347606109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29393280, while the sum is 58.

The spelling of 23656347606109 in words is "twenty-three trillion, six hundred fifty-six billion, three hundred forty-seven million, six hundred six thousand, one hundred nine".