23505661042 has 8 divisors (see below), whose sum is σ = 35271759600. Its totient is φ = 11748407844.

The previous prime is 23505661021. The next prime is 23505661043. The reversal of 23505661042 is 24016650532.

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

It is a super-2 number, since 2×23505661042² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23505660989 and 23505661007.

It is not an unprimeable number, because it can be changed into a prime (23505661043) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2204692 + ... + 2215327.

It is an arithmetic number, because the mean of its divisors is an integer number (4408969950).

Almost surely, 2^23505661042 is an apocalyptic number.

23505661042 is a deficient number, since it is larger than the sum of its proper divisors (11766098558).

23505661042 is a wasteful number, since it uses less digits than its factorization.

23505661042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4422680.

The product of its (nonzero) digits is 43200, while the sum is 34.

The spelling of 23505661042 in words is "twenty-three billion, five hundred five million, six hundred sixty-one thousand, forty-two".