5665501556001 has 32 divisors (see below), whose sum is σ = 9592565057280. Its totient is φ = 3237368214528.

The previous prime is 5665501555997. The next prime is 5665501556003. The reversal of 5665501556001 is 1006551055665.

It is not a de Polignac number, because 5665501556001 - 2² = 5665501555997 is a prime.

It is a super-3 number, since 3×5665501556001³ (a number of 39 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5665501556003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10896385 + ... + 11404481.

It is an arithmetic number, because the mean of its divisors is an integer number (299767658040).

Almost surely, 2^{5665501556001} is an apocalyptic number.

It is an amenable number.

5665501556001 is a deficient number, since it is larger than the sum of its proper divisors (3927063501279).

5665501556001 is a wasteful number, since it uses less digits than its factorization.

5665501556001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567110 (or 567104 counting only the distinct ones).

The product of its (nonzero) digits is 675000, while the sum is 45.

The spelling of 5665501556001 in words is "five trillion, six hundred sixty-five billion, five hundred one million, five hundred fifty-six thousand, one".