23305638066772 has 6 divisors (see below), whose sum is σ = 40784866616858. Its totient is φ = 11652819033384.

The previous prime is 23305638066719. The next prime is 23305638066847. The reversal of 23305638066772 is 27766083650332.

It can be written as a sum of positive squares in only one way, i.e., 19199154675856 + 4106483390916 = 4381684^2 + 2026446^2 .

It is a super-5 number, since 5×23305638066772⁵ (a number of 68 digits) contains 55555 as substring.

It is a congruent 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 as a sum of consecutive naturals, namely, 2913204758343 + ... + 2913204758350.

Almost surely, 2^{23305638066772} is an apocalyptic number.

It is an amenable number.

23305638066772 is a deficient number, since it is larger than the sum of its proper divisors (17479228550086).

23305638066772 is a wasteful number, since it uses less digits than its factorization.

23305638066772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5826409516697 (or 5826409516695 counting only the distinct ones).

The product of its (nonzero) digits is 45722880, while the sum is 58.

The spelling of 23305638066772 in words is "twenty-three trillion, three hundred five billion, six hundred thirty-eight million, sixty-six thousand, seven hundred seventy-two".