1616025280 has 112 divisors (see below), whose sum is σ = 3928811040. Its totient is φ = 633028608.

The previous prime is 1616025277. The next prime is 1616025293. The reversal of 1616025280 is 825206161.

It is a super-2 number, since 2×1616025280² = 5223075411198156800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3731944 + ... + 3732376.

It is an arithmetic number, because the mean of its divisors is an integer number (35078670).

Almost surely, 2^1616025280 is an apocalyptic number.

1616025280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1616025280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1964405520).

1616025280 is an abundant number, since it is smaller than the sum of its proper divisors (2312785760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1616025280 is a wasteful number, since it uses less digits than its factorization.

1616025280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666 (or 656 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 1616025280 is about 40199.8169150060. The cubic root of 1616025280 is about 1173.4989808603.

The spelling of 1616025280 in words is "one billion, six hundred sixteen million, twenty-five thousand, two hundred eighty".