1616487580 has 12 divisors (see below), whose sum is σ = 3394623960. Its totient is φ = 646595024.

The previous prime is 1616487571. The next prime is 1616487581. The reversal of 1616487580 is 857846161.

It is a super-2 number, since 2×1616487580² = 5226064192588512800, 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 1616487580.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1616487581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40412170 + ... + 40412209.

It is an arithmetic number, because the mean of its divisors is an integer number (282885330).

Almost surely, 2^1616487580 is an apocalyptic number.

1616487580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1616487580 is an abundant number, since it is smaller than the sum of its proper divisors (1778136380).

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

1616487580 is a wasteful number, since it uses less digits than its factorization.

1616487580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80824388 (or 80824386 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 46.

The square root of 1616487580 is about 40205.5665300217. The cubic root of 1616487580 is about 1173.6108720255.

The spelling of 1616487580 in words is "one billion, six hundred sixteen million, four hundred eighty-seven thousand, five hundred eighty".