1616468399 has 12 divisors (see below), whose sum is σ = 2025027144. Its totient is φ = 1278963504.

The previous prime is 1616468387. The next prime is 1616468417. The reversal of 1616468399 is 9938646161.

It is not a de Polignac number, because 1616468399 - 2⁴ = 1616468383 is a prime.

It is a super-2 number, since 2×1616468399² = 5225940169931246402, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1616468399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1616458399) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1268177 + ... + 1269450.

It is an arithmetic number, because the mean of its divisors is an integer number (168752262).

Almost surely, 2^1616468399 is an apocalyptic number.

1616468399 is a deficient number, since it is larger than the sum of its proper divisors (408558745).

1616468399 is a wasteful number, since it uses less digits than its factorization.

1616468399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2537654 (or 2537647 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 53.

The square root of 1616468399 is about 40205.3279926927. The cubic root of 1616468399 is about 1173.6062300435.

The spelling of 1616468399 in words is "one billion, six hundred sixteen million, four hundred sixty-eight thousand, three hundred ninety-nine".