1600120000 has 140 divisors (see below), whose sum is σ = 4015089760. Its totient is φ = 632448000.

The previous prime is 1600119931. The next prime is 1600120033. The reversal of 1600120000 is 210061.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4359817 + ... + 4360183.

Almost surely, 2^1600120000 is an apocalyptic number.

1600120000 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 1600120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2007544880).

1600120000 is an abundant number, since it is smaller than the sum of its proper divisors (2414969760).

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

1600120000 is an equidigital number, since it uses as much as digits as its factorization.

1600120000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508 (or 483 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1600120000 is about 40001.4999718761. The cubic root of 1600120000 is about 1169.6363347316.

Adding to 1600120000 its reverse (210061), we get a palindrome (1600330061).

The spelling of 1600120000 in words is "one billion, six hundred million, one hundred twenty thousand".