24340005661 has 4 divisors (see below), whose sum is σ = 24396479424. Its totient is φ = 24283531900.

The previous prime is 24340005653. The next prime is 24340005673. The reversal of 24340005661 is 16650004342.

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 24340005661 - 2³ = 24340005653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24340005611) 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, 28236235 + ... + 28237096.

It is an arithmetic number, because the mean of its divisors is an integer number (6099119856).

Almost surely, 2^24340005661 is an apocalyptic number.

It is an amenable number.

24340005661 is a deficient number, since it is larger than the sum of its proper divisors (56473763).

24340005661 is an equidigital number, since it uses as much as digits as its factorization.

24340005661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56473762.

The product of its (nonzero) digits is 17280, while the sum is 31.

The spelling of 24340005661 in words is "twenty-four billion, three hundred forty million, five thousand, six hundred sixty-one".