63243557065055 has 8 divisors (see below), whose sum is σ = 75892528830672. Its totient is φ = 50594672083648.

The previous prime is 63243557065049. The next prime is 63243557065069. The reversal of 63243557065055 is 55056075534236.

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

It is a cyclic number.

It is not a de Polignac number, because 63243557065055 - 2⁶ = 63243557064991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20081894 + ... + 23016723.

It is an arithmetic number, because the mean of its divisors is an integer number (9486566103834).

Almost surely, 2^{63243557065055} is an apocalyptic number.

63243557065055 is a deficient number, since it is larger than the sum of its proper divisors (12648971765617).

63243557065055 is a wasteful number, since it uses less digits than its factorization.

63243557065055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43392105.

The product of its (nonzero) digits is 56700000, while the sum is 56.

The spelling of 63243557065055 in words is "sixty-three trillion, two hundred forty-three billion, five hundred fifty-seven million, sixty-five thousand, fifty-five".