16120091400 has 96 divisors (see below), whose sum is σ = 57111195840. Its totient is φ = 3684591360.

The previous prime is 16120091389. The next prime is 16120091413. The reversal of 16120091400 is 419002161.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1914859 + ... + 1923258.

It is an arithmetic number, because the mean of its divisors is an integer number (594908290).

Almost surely, 2^16120091400 is an apocalyptic number.

16120091400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16120091400 is an abundant number, since it is smaller than the sum of its proper divisors (40991104440).

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

16120091400 is a wasteful number, since it uses less digits than its factorization.

16120091400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3838143 (or 3838134 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

Adding to 16120091400 its reverse (419002161), we get a palindrome (16539093561).

The spelling of 16120091400 in words is "sixteen billion, one hundred twenty million, ninety-one thousand, four hundred".