16422174720 has 768 divisors, whose sum is σ = 68374500480. Its totient is φ = 3567255552.

The previous prime is 16422174661. The next prime is 16422174739. The reversal of 16422174720 is 2747122461.

16422174720 is a `hidden beast` number, since 1 + 642 + 2 + 1 + 7 + 4 + 7 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (768).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 381911019 + ... + 381911061.

Almost surely, 2^16422174720 is an apocalyptic number.

16422174720 is a gapful number since it is divisible by the number (10) 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 16422174720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34187250240).

16422174720 is an abundant number, since it is smaller than the sum of its proper divisors (51952325760).

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

16422174720 is an equidigital number, since it uses as much as digits as its factorization.

16422174720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128 (or 97 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The spelling of 16422174720 in words is "sixteen billion, four hundred twenty-two million, one hundred seventy-four thousand, seven hundred twenty".