16121452144 has 40 divisors (see below), whose sum is σ = 35712286688. Its totient is φ = 6906332160.

The previous prime is 16121452141. The next prime is 16121452183. The reversal of 16121452144 is 44125412161.

16121452144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16121452141) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 253804 + ... + 310900.

Almost surely, 2^16121452144 is an apocalyptic number.

16121452144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

16121452144 is an abundant number, since it is smaller than the sum of its proper divisors (19590834544).

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

16121452144 is a wasteful number, since it uses less digits than its factorization.

16121452144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59633 (or 59627 counting only the distinct ones).

The product of its digits is 7680, while the sum is 31.

The spelling of 16121452144 in words is "sixteen billion, one hundred twenty-one million, four hundred fifty-two thousand, one hundred forty-four".