16408400301 has 12 divisors (see below), whose sum is σ = 23702138460. Its totient is φ = 10938418560.

The previous prime is 16408400273. The next prime is 16408400321. The reversal of 16408400301 is 10300480461.

It can be written as a sum of positive squares in 2 ways, for example, as 3965220900 + 12443179401 = 62970^2 + 111549^2 .

It is not a de Polignac number, because 16408400301 - 2²⁵ = 16374845869 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16408400321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 323871 + ... + 371091.

It is an arithmetic number, because the mean of its divisors is an integer number (1975178205).

Almost surely, 2^16408400301 is an apocalyptic number.

It is an amenable number.

16408400301 is a deficient number, since it is larger than the sum of its proper divisors (7293738159).

16408400301 is a wasteful number, since it uses less digits than its factorization.

16408400301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85836 (or 85833 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

Adding to 16408400301 its reverse (10300480461), we get a palindrome (26708880762).

The spelling of 16408400301 in words is "sixteen billion, four hundred eight million, four hundred thousand, three hundred one".