6656101670551 has 4 divisors (see below), whose sum is σ = 6755446471672. Its totient is φ = 6556756869432.

The previous prime is 6656101670473. The next prime is 6656101670597. The reversal of 6656101670551 is 1550761016566.

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 6656101670551 - 2³¹ = 6653954186903 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6656101670495 and 6656101670504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6656101676551) 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, 49672400460 + ... + 49672400593.

It is an arithmetic number, because the mean of its divisors is an integer number (1688861617918).

Almost surely, 2^{6656101670551} is an apocalyptic number.

6656101670551 is a deficient number, since it is larger than the sum of its proper divisors (99344801121).

6656101670551 is an equidigital number, since it uses as much as digits as its factorization.

6656101670551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99344801120.

The product of its (nonzero) digits is 1134000, while the sum is 49.

The spelling of 6656101670551 in words is "six trillion, six hundred fifty-six billion, one hundred one million, six hundred seventy thousand, five hundred fifty-one".