4166553555451 has 4 divisors (see below), whose sum is σ = 4761775491952. Its totient is φ = 3571331618952.

The previous prime is 4166553555419. The next prime is 4166553555473. The reversal of 4166553555451 is 1545553556614.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4166553555451 - 2⁵ = 4166553555419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4166553555392 and 4166553555401.

It is not an unprimeable number, because it can be changed into a prime (4166553555401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 297610968240 + ... + 297610968253.

It is an arithmetic number, because the mean of its divisors is an integer number (1190443872988).

Almost surely, 2^{4166553555451} is an apocalyptic number.

4166553555451 is a deficient number, since it is larger than the sum of its proper divisors (595221936501).

4166553555451 is an equidigital number, since it uses as much as digits as its factorization.

4166553555451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595221936500.

The product of its digits is 27000000, while the sum is 55.

The spelling of 4166553555451 in words is "four trillion, one hundred sixty-six billion, five hundred fifty-three million, five hundred fifty-five thousand, four hundred fifty-one".