1601630000 has 50 divisors (see below), whose sum is σ = 3877730604. Its totient is φ = 640648000.

The previous prime is 1601629961. The next prime is 1601630003. The reversal of 1601630000 is 361061.

It is a tau number, because it is divible by the number of its divisors (50).

It is not an unprimeable number, because it can be changed into a prime (1601630003) 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, 70082 + ... + 90081.

Almost surely, 2^1601630000 is an apocalyptic number.

1601630000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1601630000 is an abundant number, since it is smaller than the sum of its proper divisors (2276100604).

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

1601630000 is an equidigital number, since it uses as much as digits as its factorization.

1601630000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160191 (or 160170 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1601630000 is about 40020.3698133838. The cubic root of 1601630000 is about 1170.0041395621.

Adding to 1601630000 its reverse (361061), we get a palindrome (1601991061).

The spelling of 1601630000 in words is "one billion, six hundred one million, six hundred thirty thousand".