16120196400 has 360 divisors, whose sum is σ = 65532573504. Its totient is φ = 3349516800.

The previous prime is 16120196363. The next prime is 16120196431. The reversal of 16120196400 is 469102161.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 634339 + ... + 659261.

Almost surely, 2^16120196400 is an apocalyptic number.

16120196400 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 16120196400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32766286752).

16120196400 is an abundant number, since it is smaller than the sum of its proper divisors (49412377104).

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

16120196400 is a wasteful number, since it uses less digits than its factorization.

16120196400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24969 (or 24951 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

Adding to 16120196400 its reverse (469102161), we get a palindrome (16589298561).

The spelling of 16120196400 in words is "sixteen billion, one hundred twenty million, one hundred ninety-six thousand, four hundred".