16642217592 has 768 divisors, whose sum is σ = 65666764800. Its totient is φ = 3675525120.

The previous prime is 16642217489. The next prime is 16642217597. The reversal of 16642217592 is 29571224661.

16642217592 is a `hidden beast` number, since 1 + 6 + 6 + 42 + 2 + 17 + 592 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16642217597) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 354089713 + ... + 354089759.

It is an arithmetic number, because the mean of its divisors is an integer number (85503600).

Almost surely, 2^16642217592 is an apocalyptic number.

16642217592 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16642217592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32833382400).

16642217592 is an abundant number, since it is smaller than the sum of its proper divisors (49024547208).

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

16642217592 is a wasteful number, since it uses less digits than its factorization.

16642217592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141 (or 100 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The spelling of 16642217592 in words is "sixteen billion, six hundred forty-two million, two hundred seventeen thousand, five hundred ninety-two".