2120605616 has 20 divisors (see below), whose sum is σ = 4164958872. Its totient is φ = 1045777536.

The previous prime is 2120605603. The next prime is 2120605621. The reversal of 2120605616 is 6165060212.

It is a super-2 number, since 2×2120605616² = 8993936357221478912, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 906626 + ... + 908961.

Almost surely, 2^2120605616 is an apocalyptic number.

It is an amenable number.

2120605616 is a deficient number, since it is larger than the sum of its proper divisors (2044353256).

2120605616 is a wasteful number, since it uses less digits than its factorization.

2120605616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1815668 (or 1815662 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 2120605616 is about 46050.0338327780. The cubic root of 2120605616 is about 1284.7539720859.

Adding to 2120605616 its reverse (6165060212), we get a palindrome (8285665828).

The spelling of 2120605616 in words is "two billion, one hundred twenty million, six hundred five thousand, six hundred sixteen".