216577743551411 has 16 divisors (see below), whose sum is σ = 249769104474240. Its totient is φ = 185725744269120.

The previous prime is 216577743551401. The next prime is 216577743551473. The reversal of 216577743551411 is 114155347775612.

It is a de Polignac number, because none of the positive numbers 2^k-216577743551411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216577743551401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2223679085 + ... + 2223776478.

It is an arithmetic number, because the mean of its divisors is an integer number (15610569029640).

Almost surely, 2^{216577743551411} is an apocalyptic number.

216577743551411 is a deficient number, since it is larger than the sum of its proper divisors (33191360922829).

216577743551411 is a wasteful number, since it uses less digits than its factorization.

216577743551411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4447455826.

The product of its digits is 24696000, while the sum is 59.

The spelling of 216577743551411 in words is "two hundred sixteen trillion, five hundred seventy-seven billion, seven hundred forty-three million, five hundred fifty-one thousand, four hundred eleven".