16667006720 has 576 divisors, whose sum is σ = 54887777280. Its totient is φ = 4692639744.

The previous prime is 16667006689. The next prime is 16667006723. The reversal of 16667006720 is 2760076661.

It is a super-2 number, since 2×16667006720² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16667006723) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 37622819 + ... + 37623261.

It is an arithmetic number, because the mean of its divisors is an integer number (95291280).

Almost surely, 2^16667006720 is an apocalyptic number.

16667006720 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 16667006720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27443888640).

16667006720 is an abundant number, since it is smaller than the sum of its proper divisors (38220770560).

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

16667006720 is a wasteful number, since it uses less digits than its factorization.

16667006720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520 (or 506 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 41.

The spelling of 16667006720 in words is "sixteen billion, six hundred sixty-seven million, six thousand, seven hundred twenty".