16405924801 has 8 divisors (see below), whose sum is σ = 19256375360. Its totient is φ = 13682161008.

The previous prime is 16405924781. The next prime is 16405924823. The reversal of 16405924801 is 10842950461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16405924801 - 2¹⁵ = 16405892033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16405924861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31671411 + ... + 31671928.

It is an arithmetic number, because the mean of its divisors is an integer number (2407046920).

Almost surely, 2^16405924801 is an apocalyptic number.

It is an amenable number.

16405924801 is a deficient number, since it is larger than the sum of its proper divisors (2850450559).

16405924801 is an equidigital number, since it uses as much as digits as its factorization.

16405924801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63343383.

The product of its (nonzero) digits is 69120, while the sum is 40.

The spelling of 16405924801 in words is "sixteen billion, four hundred five million, nine hundred twenty-four thousand, eight hundred one".