545220230140645 has 16 divisors (see below), whose sum is σ = 663480742464000. Its totient is φ = 430031900592000.

The previous prime is 545220230140577. The next prime is 545220230140661. The reversal of 545220230140645 is 546041032022545.

It is not a de Polignac number, because 545220230140645 - 2¹⁹ = 545220229616357 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187505620 + ... + 190391170.

It is an arithmetic number, because the mean of its divisors is an integer number (41467546404000).

Almost surely, 2^{545220230140645} is an apocalyptic number.

It is an amenable number.

545220230140645 is a deficient number, since it is larger than the sum of its proper divisors (118260512323355).

545220230140645 is a wasteful number, since it uses less digits than its factorization.

545220230140645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3417876.

The product of its (nonzero) digits is 1152000, while the sum is 43.

The spelling of 545220230140645 in words is "five hundred forty-five trillion, two hundred twenty billion, two hundred thirty million, one hundred forty thousand, six hundred forty-five".