1616620000 has 60 divisors (see below), whose sum is σ = 3977176896. Its totient is φ = 646640000.

The previous prime is 1616619889. The next prime is 1616620003. The reversal of 1616620000 is 266161.

It is a super-2 number, since 2×1616620000² = 5226920448800000000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1616620003) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 20416 + ... + 60415.

Almost surely, 2^1616620000 is an apocalyptic number.

1616620000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1616620000 is an abundant number, since it is smaller than the sum of its proper divisors (2360556896).

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

1616620000 is an frugal number, since it uses more digits than its factorization.

1616620000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80861 (or 80838 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1616620000 is about 40207.2132831909. The cubic root of 1616620000 is about 1173.6429179070.

Adding to 1616620000 its reverse (266161), we get a palindrome (1616886161).

The spelling of 1616620000 in words is "one billion, six hundred sixteen million, six hundred twenty thousand".