1601210616 has 32 divisors (see below), whose sum is σ = 4057866960. Its totient is φ = 526424832.

The previous prime is 1601210609. The next prime is 1601210623. The reversal of 1601210616 is 6160121061.

It is an interprime number because it is at equal distance from previous prime (1601210609) and next prime (1601210623).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 455215 + ... + 458718.

Almost surely, 2^1601210616 is an apocalyptic number.

It is an amenable number.

1601210616 is an abundant number, since it is smaller than the sum of its proper divisors (2456656344).

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

1601210616 is a wasteful number, since it uses less digits than its factorization.

1601210616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914015 (or 914011 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 1601210616 is about 40015.1298385998. The cubic root of 1601210616 is about 1169.9020094717.

Adding to 1601210616 its reverse (6160121061), we get a palindrome (7761331677).

The spelling of 1601210616 in words is "one billion, six hundred one million, two hundred ten thousand, six hundred sixteen".