6577315801667 has 4 divisors (see below), whose sum is σ = 7083263171040. Its totient is φ = 6071368432296.

The previous prime is 6577315801633. The next prime is 6577315801709. The reversal of 6577315801667 is 7661085137756.

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 6577315801667 - 2¹⁸ = 6577315539523 is a prime.

It is a super-2 number, since 2×6577315801667² (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 (6577315821667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252973684667 + ... + 252973684692.

It is an arithmetic number, because the mean of its divisors is an integer number (1770815792760).

Almost surely, 2^{6577315801667} is an apocalyptic number.

6577315801667 is a deficient number, since it is larger than the sum of its proper divisors (505947369373).

6577315801667 is a wasteful number, since it uses less digits than its factorization.

6577315801667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505947369372.

The product of its (nonzero) digits is 44452800, while the sum is 62.

The spelling of 6577315801667 in words is "six trillion, five hundred seventy-seven billion, three hundred fifteen million, eight hundred one thousand, six hundred sixty-seven".