63555655541 has 32 divisors (see below), whose sum is σ = 79613072640. Its totient is φ = 49470575616.

The previous prime is 63555655517. The next prime is 63555655549. The reversal of 63555655541 is 14555655536.

It is a de Polignac number, because none of the positive numbers 2^k-63555655541 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 63555655541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63555655549) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5975270 + ... + 5985896.

It is an arithmetic number, because the mean of its divisors is an integer number (2487908520).

Almost surely, 2^63555655541 is an apocalyptic number.

It is an amenable number.

63555655541 is a deficient number, since it is larger than the sum of its proper divisors (16057417099).

63555655541 is a wasteful number, since it uses less digits than its factorization.

63555655541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12413.

The product of its digits is 6750000, while the sum is 50.

The spelling of 63555655541 in words is "sixty-three billion, five hundred fifty-five million, six hundred fifty-five thousand, five hundred forty-one".