16387357801 has 4 divisors (see below), whose sum is σ = 16556299732. Its totient is φ = 16218415872.

The previous prime is 16387357799. The next prime is 16387357813. The reversal of 16387357801 is 10875378361.

16387357801 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10875378361 = 3499 ⋅3108139.

It can be written as a sum of positive squares in 2 ways, for example, as 13312544400 + 3074813401 = 115380^2 + 55451^2 .

It is a cyclic number.

It is not a de Polignac number, because 16387357801 - 2¹ = 16387357799 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16387357841) 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 3 ways as a sum of consecutive naturals, for example, 84470820 + ... + 84471013.

It is an arithmetic number, because the mean of its divisors is an integer number (4139074933).

Almost surely, 2^16387357801 is an apocalyptic number.

It is an amenable number.

16387357801 is a deficient number, since it is larger than the sum of its proper divisors (168941931).

16387357801 is an equidigital number, since it uses as much as digits as its factorization.

16387357801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168941930.

The product of its (nonzero) digits is 846720, while the sum is 49.

The spelling of 16387357801 in words is "sixteen billion, three hundred eighty-seven million, three hundred fifty-seven thousand, eight hundred one".