16779822009090 has 128 divisors (see below), whose sum is σ = 46585551624192. Its totient is φ = 3788659146240.

The previous prime is 16779822009043. The next prime is 16779822009101. The reversal of 16779822009090 is 9090022897761.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 135072705 + ... + 135196875.

It is an arithmetic number, because the mean of its divisors is an integer number (363949622064).

Almost surely, 2^{16779822009090} is an apocalyptic number.

16779822009090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16779822009090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23292775812096).

16779822009090 is an abundant number, since it is smaller than the sum of its proper divisors (29805729615102).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16779822009090 is a wasteful number, since it uses less digits than its factorization.

16779822009090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132024.

The product of its (nonzero) digits is 6858432, while the sum is 60.

The spelling of 16779822009090 in words is "sixteen trillion, seven hundred seventy-nine billion, eight hundred twenty-two million, nine thousand, ninety".