16381250529280 has 768 divisors, whose sum is σ = 49136855040000. Its totient is φ = 5103553609728.

The previous prime is 16381250529271. The next prime is 16381250529307. The reversal of 16381250529280 is 8292505218361.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17633207856 + ... + 17633208784.

It is an arithmetic number, because the mean of its divisors is an integer number (63980280000).

Almost surely, 2^{16381250529280} is an apocalyptic number.

16381250529280 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 16381250529280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24568427520000).

16381250529280 is an abundant number, since it is smaller than the sum of its proper divisors (32755604510720).

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

16381250529280 is a wasteful number, since it uses less digits than its factorization.

16381250529280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1252 (or 1232 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 52.

The spelling of 16381250529280 in words is "sixteen trillion, three hundred eighty-one billion, two hundred fifty million, five hundred twenty-nine thousand, two hundred eighty".