1006656066551 has 4 divisors (see below), whose sum is σ = 1006658112600. Its totient is φ = 1006654020504.

The previous prime is 1006656066527. The next prime is 1006656066659. The reversal of 1006656066551 is 1556606566001.

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 1006656066551 - 2³⁰ = 1005582324727 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1006656066496 and 1006656066505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1006656566551) 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, 211805 + ... + 1434633.

It is an arithmetic number, because the mean of its divisors is an integer number (251664528150).

Almost surely, 2^{1006656066551} is an apocalyptic number.

1006656066551 is a deficient number, since it is larger than the sum of its proper divisors (2046049).

1006656066551 is an equidigital number, since it uses as much as digits as its factorization.

1006656066551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2046048.

The product of its (nonzero) digits is 972000, while the sum is 47.

The spelling of 1006656066551 in words is "one trillion, six billion, six hundred fifty-six million, sixty-six thousand, five hundred fifty-one".