55816463663 has 8 divisors (see below), whose sum is σ = 56774111760. Its totient is φ = 54859202560.

The previous prime is 55816463629. The next prime is 55816463669. The reversal of 55816463663 is 36636461855.

It is a happy number.

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 55816463663 - 2²⁶ = 55749354799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55816463669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202031 + ... + 390447.

It is an arithmetic number, because the mean of its divisors is an integer number (7096763970).

Almost surely, 2^55816463663 is an apocalyptic number.

55816463663 is a deficient number, since it is larger than the sum of its proper divisors (957648097).

55816463663 is a wasteful number, since it uses less digits than its factorization.

55816463663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193497.

The product of its digits is 9331200, while the sum is 53.

The spelling of 55816463663 in words is "fifty-five billion, eight hundred sixteen million, four hundred sixty-three thousand, six hundred sixty-three".