23467180561 has 6 divisors (see below), whose sum is σ = 25794504386. Its totient is φ = 21333800400.

The previous prime is 23467180549. The next prime is 23467180591. The reversal of 23467180561 is 16508176432.

It can be written as a sum of positive squares in only one way, i.e., 23445734400 + 21446161 = 153120^2 + 4631^2 .

It is not a de Polignac number, because 23467180561 - 2¹¹ = 23467178513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23467180591) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 96971700 + ... + 96971941.

Almost surely, 2^23467180561 is an apocalyptic number.

It is an amenable number.

23467180561 is a deficient number, since it is larger than the sum of its proper divisors (2327323825).

23467180561 is a wasteful number, since it uses less digits than its factorization.

23467180561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193943663 (or 193943652 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 23467180561 in words is "twenty-three billion, four hundred sixty-seven million, one hundred eighty thousand, five hundred sixty-one".