23516415601 has 12 divisors (see below), whose sum is σ = 27387072948. Its totient is φ = 20133906912.

The previous prime is 23516415599. The next prime is 23516415617. The reversal of 23516415601 is 10651461532.

It can be written as a sum of positive squares in 2 ways, for example, as 19223545201 + 4292870400 = 138649^2 + 65520^2 .

It is not a de Polignac number, because 23516415601 - 2¹ = 23516415599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23516415631) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 230646 + ... + 316591.

It is an arithmetic number, because the mean of its divisors is an integer number (2282256079).

Almost surely, 2^23516415601 is an apocalyptic number.

It is an amenable number.

23516415601 is a deficient number, since it is larger than the sum of its proper divisors (3870657347).

23516415601 is an equidigital number, since it uses as much as digits as its factorization.

23516415601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548128 (or 548121 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The spelling of 23516415601 in words is "twenty-three billion, five hundred sixteen million, four hundred fifteen thousand, six hundred one".