16720123848120 has 1536 divisors, whose sum is σ = 72279699148800. Its totient is φ = 3276626411520.

The previous prime is 16720123848119. The next prime is 16720123848121. The reversal of 16720123848120 is 2184832102761.

16720123848120 is a `hidden beast` number, since 1 + 6 + 7 + 20 + 123 + 8 + 481 + 20 = 666.

It is an interprime number because it is at equal distance from previous prime (16720123848119) and next prime (16720123848121).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16720123848121) by changing a digit.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 5631565996 + ... + 5631568964.

It is an arithmetic number, because the mean of its divisors is an integer number (47057095800).

Almost surely, 2^{16720123848120} is an apocalyptic number.

16720123848120 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 16720123848120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36139849574400).

16720123848120 is an abundant number, since it is smaller than the sum of its proper divisors (55559575300680).

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

16720123848120 is a wasteful number, since it uses less digits than its factorization.

16720123848120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3122 (or 3093 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The spelling of 16720123848120 in words is "sixteen trillion, seven hundred twenty billion, one hundred twenty-three million, eight hundred forty-eight thousand, one hundred twenty".