16617205562111 has 8 divisors (see below), whose sum is σ = 20717554986624. Its totient is φ = 12948471866520.

The previous prime is 16617205562071. The next prime is 16617205562123. The reversal of 16617205562111 is 11126550271661.

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 16617205562111 - 2⁶ = 16617205562047 is a prime.

It is a super-3 number, since 3×16617205562111³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16617205562171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107903932145 + ... + 107903932298.

It is an arithmetic number, because the mean of its divisors is an integer number (2589694373328).

Almost surely, 2^{16617205562111} is an apocalyptic number.

16617205562111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

16617205562111 is a deficient number, since it is larger than the sum of its proper divisors (4100349424513).

16617205562111 is a wasteful number, since it uses less digits than its factorization.

16617205562111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215807864461.

The product of its (nonzero) digits is 151200, while the sum is 44.

The spelling of 16617205562111 in words is "sixteen trillion, six hundred seventeen billion, two hundred five million, five hundred sixty-two thousand, one hundred eleven".