6655000000001 has 4 divisors (see below), whose sum is σ = 6944347826112. Its totient is φ = 6365652173892.

The previous prime is 6654999999997. The next prime is 6655000000021. The reversal of 6655000000001 is 1000000005566.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6655000000001 - 2² = 6654999999997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 289347826087 = 6655000000001 / (6 + 6 + 5 + 5 + 0 + 0 + 0 + 0 + 0 + 0 + 0 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6655000000021) 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, 144673913021 + ... + 144673913066.

It is an arithmetic number, because the mean of its divisors is an integer number (1736086956528).

Almost surely, 2^{6655000000001} is an apocalyptic number.

It is an amenable number.

6655000000001 is a deficient number, since it is larger than the sum of its proper divisors (289347826111).

6655000000001 is a wasteful number, since it uses less digits than its factorization.

6655000000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289347826110.

The product of its (nonzero) digits is 900, while the sum is 23.

Adding to 6655000000001 its reverse (1000000005566), we get a palindrome (7655000005567).

The spelling of 6655000000001 in words is "six trillion, six hundred fifty-five billion, one", and thus it is an aban number.