20416189319 has 4 divisors (see below), whose sum is σ = 20443159944. Its totient is φ = 20389218696.

The previous prime is 20416189303. The next prime is 20416189327. The reversal of 20416189319 is 91398161402.

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 20416189319 - 2⁴ = 20416189303 is a prime.

It is a super-2 number, since 2×20416189319² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20416189319.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20416189379) 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, 13484177 + ... + 13485690.

It is an arithmetic number, because the mean of its divisors is an integer number (5110789986).

Almost surely, 2^20416189319 is an apocalyptic number.

20416189319 is a deficient number, since it is larger than the sum of its proper divisors (26970625).

20416189319 is an equidigital number, since it uses as much as digits as its factorization.

20416189319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26970624.

The product of its (nonzero) digits is 93312, while the sum is 44.

The spelling of 20416189319 in words is "twenty billion, four hundred sixteen million, one hundred eighty-nine thousand, three hundred nineteen".