16030519397 has 4 divisors (see below), whose sum is σ = 16463776716. Its totient is φ = 15597262080.

The previous prime is 16030519381. The next prime is 16030519403. The reversal of 16030519397 is 79391503061.

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

It can be written as a sum of positive squares in 2 ways, for example, as 14576698756 + 1453820641 = 120734^2 + 38129^2 .

It is a cyclic number.

It is not a de Polignac number, because 16030519397 - 2⁴ = 16030519381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16030519367) 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, 216628604 + ... + 216628677.

It is an arithmetic number, because the mean of its divisors is an integer number (4115944179).

Almost surely, 2^16030519397 is an apocalyptic number.

It is an amenable number.

16030519397 is a deficient number, since it is larger than the sum of its proper divisors (433257319).

16030519397 is an equidigital number, since it uses as much as digits as its factorization.

16030519397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433257318.

The product of its (nonzero) digits is 153090, while the sum is 44.

The spelling of 16030519397 in words is "sixteen billion, thirty million, five hundred nineteen thousand, three hundred ninety-seven".