1616267863 has 16 divisors (see below), whose sum is σ = 1925287936. Its totient is φ = 1327648320.

The previous prime is 1616267833. The next prime is 1616267869. The reversal of 1616267863 is 3687626161.

It is a cyclic number.

It is not a de Polignac number, because 1616267863 - 2⁹ = 1616267351 is a prime.

It is a super-2 number, since 2×1616267863² = 5224643609933173538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1616267869) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13806 + ... + 58507.

It is an arithmetic number, because the mean of its divisors is an integer number (120330496).

Almost surely, 2^1616267863 is an apocalyptic number.

1616267863 is a deficient number, since it is larger than the sum of its proper divisors (309020073).

1616267863 is a wasteful number, since it uses less digits than its factorization.

1616267863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72454.

The product of its digits is 435456, while the sum is 46.

The square root of 1616267863 is about 40202.8340170192. The cubic root of 1616267863 is about 1173.5576962496.

The spelling of 1616267863 in words is "one billion, six hundred sixteen million, two hundred sixty-seven thousand, eight hundred sixty-three".