6667246106557 has 8 divisors (see below), whose sum is σ = 6779775451680. Its totient is φ = 6555650615280.

The previous prime is 6667246106509. The next prime is 6667246106597. The reversal of 6667246106557 is 7556016427666.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6667246106557 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6667246106495 and 6667246106504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6667246106597) 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, 233449063 + ... + 233477620.

It is an arithmetic number, because the mean of its divisors is an integer number (847471931460).

Almost surely, 2^{6667246106557} is an apocalyptic number.

It is an amenable number.

6667246106557 is a deficient number, since it is larger than the sum of its proper divisors (112529345123).

6667246106557 is a wasteful number, since it uses less digits than its factorization.

6667246106557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466926923.

The product of its (nonzero) digits is 76204800, while the sum is 61.

The spelling of 6667246106557 in words is "six trillion, six hundred sixty-seven billion, two hundred forty-six million, one hundred six thousand, five hundred fifty-seven".