23644680155 has 8 divisors (see below), whose sum is σ = 28381583184. Its totient is φ = 18910432800.

The previous prime is 23644680121. The next prime is 23644680161. The reversal of 23644680155 is 55108644632.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-23644680155 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 644276 + ... + 679985.

It is an arithmetic number, because the mean of its divisors is an integer number (3547697898).

Almost surely, 2^23644680155 is an apocalyptic number.

23644680155 is a deficient number, since it is larger than the sum of its proper divisors (4736903029).

23644680155 is a wasteful number, since it uses less digits than its factorization.

23644680155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1327837.

The product of its (nonzero) digits is 691200, while the sum is 44.

The spelling of 23644680155 in words is "twenty-three billion, six hundred forty-four million, six hundred eighty thousand, one hundred fifty-five".