16450277400 has 144 divisors (see below), whose sum is σ = 55508623560. Its totient is φ = 4365849600.

The previous prime is 16450277351. The next prime is 16450277401. The reversal of 16450277400 is 477205461.

16450277400 is a `hidden beast` number, since 1 + 645 + 0 + 2 + 7 + 7 + 4 + 0 + 0 = 666.

It is a super-2 number, since 2×16450277400² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16450277401) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 358144 + ... + 401456.

Almost surely, 2^16450277400 is an apocalyptic number.

16450277400 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 16450277400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27754311780).

16450277400 is an abundant number, since it is smaller than the sum of its proper divisors (39058346160).

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

16450277400 is a wasteful number, since it uses less digits than its factorization.

16450277400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43546 (or 43534 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The spelling of 16450277400 in words is "sixteen billion, four hundred fifty million, two hundred seventy-seven thousand, four hundred".