5551236497663 has 4 divisors (see below), whose sum is σ = 5551271788080. Its totient is φ = 5551201207248.

The previous prime is 5551236497659. The next prime is 5551236497683. The reversal of 5551236497663 is 3667946321555.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5551236497663 - 2² = 5551236497659 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5551236497596 and 5551236497605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5551236497683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17408195 + ... + 17724212.

It is an arithmetic number, because the mean of its divisors is an integer number (1387817947020).

Almost surely, 2^{5551236497663} is an apocalyptic number.

5551236497663 is a deficient number, since it is larger than the sum of its proper divisors (35290417).

5551236497663 is a wasteful number, since it uses less digits than its factorization.

5551236497663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35290416.

The product of its digits is 122472000, while the sum is 62.

The spelling of 5551236497663 in words is "five trillion, five hundred fifty-one billion, two hundred thirty-six million, four hundred ninety-seven thousand, six hundred sixty-three".