16164434450 has 48 divisors (see below), whose sum is σ = 30271812480. Its totient is φ = 6421629120.

The previous prime is 16164434449. The next prime is 16164434453. The reversal of 16164434450 is 5443446161.

16164434450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×16164434450² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16164434453) 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 23 ways as a sum of consecutive naturals, for example, 5345639 + ... + 5348661.

It is an arithmetic number, because the mean of its divisors is an integer number (630662760).

Almost surely, 2^16164434450 is an apocalyptic number.

16164434450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16164434450 is a deficient number, since it is larger than the sum of its proper divisors (14107378030).

16164434450 is a wasteful number, since it uses less digits than its factorization.

16164434450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3731 (or 3726 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 38.

The spelling of 16164434450 in words is "sixteen billion, one hundred sixty-four million, four hundred thirty-four thousand, four hundred fifty".