1601216700 has 36 divisors (see below), whose sum is σ = 4632854520. Its totient is φ = 426991040.

The previous prime is 1601216663. The next prime is 1601216713. The reversal of 1601216700 is 76121061.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2668395 + ... + 2668994.

Almost surely, 2^1601216700 is an apocalyptic number.

1601216700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1601216700 is an abundant number, since it is smaller than the sum of its proper divisors (3031637820).

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

1601216700 is a wasteful number, since it uses less digits than its factorization.

1601216700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5337406 (or 5337399 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 1601216700 is about 40015.2058597729. The cubic root of 1601216700 is about 1169.9034911995.

Adding to 1601216700 its reverse (76121061), we get a palindrome (1677337761).

The spelling of 1601216700 in words is "one billion, six hundred one million, two hundred sixteen thousand, seven hundred".