5561177066769 has 4 divisors (see below), whose sum is σ = 7414902755696. Its totient is φ = 3707451377844.

The previous prime is 5561177066743. The next prime is 5561177066779. The reversal of 5561177066769 is 9676607711655.

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 not a de Polignac number, because 5561177066769 - 2²¹ = 5561174969617 is a prime.

It is a super-2 number, since 2×5561177066769² (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 (5561177066779) 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, 926862844459 + ... + 926862844464.

It is an arithmetic number, because the mean of its divisors is an integer number (1853725688924).

Almost surely, 2^{5561177066769} is an apocalyptic number.

It is an amenable number.

5561177066769 is a deficient number, since it is larger than the sum of its proper divisors (1853725688927).

5561177066769 is a wasteful number, since it uses less digits than its factorization.

5561177066769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1853725688926.

The product of its (nonzero) digits is 100018800, while the sum is 66.

The spelling of 5561177066769 in words is "five trillion, five hundred sixty-one billion, one hundred seventy-seven million, sixty-six thousand, seven hundred sixty-nine".