6577117777553 has 4 divisors (see below), whose sum is σ = 6577982399040. Its totient is φ = 6576253156068.

The previous prime is 6577117777541. The next prime is 6577117777579. The reversal of 6577117777553 is 3557777117756.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6577117777553 - 2²⁶ = 6577050668689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6577117777253) 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, 432299333 + ... + 432314546.

It is an arithmetic number, because the mean of its divisors is an integer number (1644495599760).

Almost surely, 2^{6577117777553} is an apocalyptic number.

It is an amenable number.

6577117777553 is a deficient number, since it is larger than the sum of its proper divisors (864621487).

6577117777553 is an equidigital number, since it uses as much as digits as its factorization.

6577117777553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864621486.

The product of its digits is 264710250, while the sum is 68.

The spelling of 6577117777553 in words is "six trillion, five hundred seventy-seven billion, one hundred seventeen million, seven hundred seventy-seven thousand, five hundred fifty-three".