16255711323720 has 1280 divisors, whose sum is σ = 66916523520000. Its totient is φ = 3488136929280.

The previous prime is 16255711323661. The next prime is 16255711323763. The reversal of 16255711323720 is 2732311755261.

16255711323720 is a `hidden beast` number, since 1 + 6 + 2 + 5 + 571 + 1 + 3 + 2 + 3 + 72 + 0 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 1600124001 + ... + 1600134159.

It is an arithmetic number, because the mean of its divisors is an integer number (52278534000).

Almost surely, 2^{16255711323720} is an apocalyptic number.

16255711323720 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 16255711323720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33458261760000).

16255711323720 is an abundant number, since it is smaller than the sum of its proper divisors (50660812196280).

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

16255711323720 is a wasteful number, since it uses less digits than its factorization.

16255711323720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10368 (or 10355 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 45.

The spelling of 16255711323720 in words is "sixteen trillion, two hundred fifty-five billion, seven hundred eleven million, three hundred twenty-three thousand, seven hundred twenty".