55663041565 has 8 divisors (see below), whose sum is σ = 67600417248. Its totient is φ = 43993921680.

The previous prime is 55663041559. The next prime is 55663041569. The reversal of 55663041565 is 56514036655.

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

It is not a de Polignac number, because 55663041565 - 2¹⁹ = 55662517277 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 (55663041569) 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, 67063491 + ... + 67064320.

It is an arithmetic number, because the mean of its divisors is an integer number (8450052156).

Almost surely, 2^55663041565 is an apocalyptic number.

It is an amenable number.

55663041565 is a deficient number, since it is larger than the sum of its proper divisors (11937375683).

55663041565 is a wasteful number, since it uses less digits than its factorization.

55663041565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134127899.

The product of its (nonzero) digits is 1620000, while the sum is 46.

The spelling of 55663041565 in words is "fifty-five billion, six hundred sixty-three million, forty-one thousand, five hundred sixty-five".