11777655617 has 8 divisors (see below), whose sum is σ = 14495576256. Its totient is φ = 9318584592.

The previous prime is 11777655611. The next prime is 11777655623. The reversal of 11777655617 is 71655677711.

It is an interprime number because it is at equal distance from previous prime (11777655611) and next prime (11777655623).

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 11777655617 - 2⁶ = 11777655553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11777655611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64712303 + ... + 64712484.

It is an arithmetic number, because the mean of its divisors is an integer number (1811947032).

Almost surely, 2^11777655617 is an apocalyptic number.

It is an amenable number.

11777655617 is a deficient number, since it is larger than the sum of its proper divisors (2717920639).

11777655617 is a wasteful number, since it uses less digits than its factorization.

11777655617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129424807.

The product of its digits is 2160900, while the sum is 53.

The spelling of 11777655617 in words is "eleven billion, seven hundred seventy-seven million, six hundred fifty-five thousand, six hundred seventeen".