245405555541 has 12 divisors (see below), whose sum is σ = 354700924032. Its totient is φ = 163499288616.

The previous prime is 245405555513. The next prime is 245405555567. The reversal of 245405555541 is 145555504542.

It is a happy number.

245405555541 is a `hidden beast` number, since 2 + 4 + 5 + 4 + 0 + 55 + 55 + 541 = 666.

It is not a de Polignac number, because 245405555541 - 2⁶ = 245405555477 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245405555041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8686371 + ... + 8714576.

It is an arithmetic number, because the mean of its divisors is an integer number (29558410336).

Almost surely, 2^245405555541 is an apocalyptic number.

It is an amenable number.

245405555541 is a deficient number, since it is larger than the sum of its proper divisors (109295368491).

245405555541 is a wasteful number, since it uses less digits than its factorization.

245405555541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17402520 (or 17402517 counting only the distinct ones).

The product of its (nonzero) digits is 2000000, while the sum is 45.

The spelling of 245405555541 in words is "two hundred forty-five billion, four hundred five million, five hundred fifty-five thousand, five hundred forty-one".