16018590019 has 4 divisors (see below), whose sum is σ = 16026613344. Its totient is φ = 16010566696.

The previous prime is 16018590013. The next prime is 16018590023. The reversal of 16018590019 is 91009581061.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16018590019 - 2¹³ = 16018581827 is a prime.

It is a super-2 number, since 2×16018590019² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16018590013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4008667 + ... + 4012660.

It is an arithmetic number, because the mean of its divisors is an integer number (4006653336).

Almost surely, 2^16018590019 is an apocalyptic number.

16018590019 is a deficient number, since it is larger than the sum of its proper divisors (8023325).

16018590019 is an equidigital number, since it uses as much as digits as its factorization.

16018590019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8023324.

The product of its (nonzero) digits is 19440, while the sum is 40.

The spelling of 16018590019 in words is "sixteen billion, eighteen million, five hundred ninety thousand, nineteen".