16108657920 has 360 divisors, whose sum is σ = 57962852640. Its totient is φ = 4271616000.

The previous prime is 16108657909. The next prime is 16108657933. The reversal of 16108657920 is 2975680161.

16108657920 is a `hidden beast` number, since 1 + 610 + 8 + 6 + 5 + 7 + 9 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (360).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 26023371 + ... + 26023989.

It is an arithmetic number, because the mean of its divisors is an integer number (161007924).

Almost surely, 2^16108657920 is an apocalyptic number.

16108657920 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 16108657920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28981426320).

16108657920 is an abundant number, since it is smaller than the sum of its proper divisors (41854194720).

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

16108657920 is an equidigital number, since it uses as much as digits as its factorization.

16108657920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903 (or 880 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The spelling of 16108657920 in words is "sixteen billion, one hundred eight million, six hundred fifty-seven thousand, nine hundred twenty".