6577120237681 has 8 divisors (see below), whose sum is σ = 7516729802880. Its totient is φ = 5637515912448.

The previous prime is 6577120237669. The next prime is 6577120237691. The reversal of 6577120237681 is 1867320217756.

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

It is not a de Polignac number, because 6577120237681 - 2⁷ = 6577120237553 is a prime.

It is a super-2 number, since 2×6577120237681² (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 (6577120237691) 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, 1906065 + ... + 4097233.

It is an arithmetic number, because the mean of its divisors is an integer number (939591225360).

Almost surely, 2^{6577120237681} is an apocalyptic number.

It is an amenable number.

6577120237681 is a deficient number, since it is larger than the sum of its proper divisors (939609565199).

6577120237681 is a wasteful number, since it uses less digits than its factorization.

6577120237681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2619983.

The product of its (nonzero) digits is 5927040, while the sum is 55.

The spelling of 6577120237681 in words is "six trillion, five hundred seventy-seven billion, one hundred twenty million, two hundred thirty-seven thousand, six hundred eighty-one".