6675487771681 has 8 divisors (see below), whose sum is σ = 6832438252640. Its totient is φ = 6518614862592.

The previous prime is 6675487771661. The next prime is 6675487771739. The reversal of 6675487771681 is 1861777845766.

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

It is a cyclic number.

It is not a de Polignac number, because 6675487771681 - 2¹¹ = 6675487769633 is a prime.

It is a super-2 number, since 2×6675487771681² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6675487771661) 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, 19218816 + ... + 19563073.

It is an arithmetic number, because the mean of its divisors is an integer number (854054781580).

Almost surely, 2^{6675487771681} is an apocalyptic number.

It is an amenable number.

6675487771681 is a deficient number, since it is larger than the sum of its proper divisors (156950480959).

6675487771681 is a wasteful number, since it uses less digits than its factorization.

6675487771681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38785935.

The product of its digits is 663828480, while the sum is 73.

The spelling of 6675487771681 in words is "six trillion, six hundred seventy-five billion, four hundred eighty-seven million, seven hundred seventy-one thousand, six hundred eighty-one".