16253270121000 has 640 divisors, whose sum is σ = 58787661029760. Its totient is φ = 3707782144000.

The previous prime is 16253270120963. The next prime is 16253270121029. The reversal of 16253270121000 is 12107235261.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 2756190052 + ... + 2756195948.

It is an arithmetic number, because the mean of its divisors is an integer number (91855720359).

Almost surely, 2^{16253270121000} is an apocalyptic number.

16253270121000 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 16253270121000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29393830514880).

16253270121000 is an abundant number, since it is smaller than the sum of its proper divisors (42534390908760).

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

16253270121000 is an equidigital number, since it uses as much as digits as its factorization.

16253270121000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6000 (or 5935 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

Adding to 16253270121000 its reverse (12107235261), we get a palindrome (16265377356261).

The spelling of 16253270121000 in words is "sixteen trillion, two hundred fifty-three billion, two hundred seventy million, one hundred twenty-one thousand".