23499648661 has 4 divisors (see below), whose sum is σ = 23679035424. Its totient is φ = 23320261900.

The previous prime is 23499648617. The next prime is 23499648671. The reversal of 23499648661 is 16684699432.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23499648661 - 2⁹ = 23499648149 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23499648596 and 23499648605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23499648671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89693185 + ... + 89693446.

It is an arithmetic number, because the mean of its divisors is an integer number (5919758856).

Almost surely, 2^23499648661 is an apocalyptic number.

It is an amenable number.

23499648661 is a deficient number, since it is larger than the sum of its proper divisors (179386763).

23499648661 is a wasteful number, since it uses less digits than its factorization.

23499648661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179386762.

The product of its digits is 13436928, while the sum is 58.

The spelling of 23499648661 in words is "twenty-three billion, four hundred ninety-nine million, six hundred forty-eight thousand, six hundred sixty-one".