1616613201 has 32 divisors (see below), whose sum is σ = 2738995200. Its totient is φ = 923147280.

The previous prime is 1616613191. The next prime is 1616613209. The reversal of 1616613201 is 1023166161.

1616613201 is a `hidden beast` number, since 16 + 16 + 613 + 20 + 1 = 666.

It is not a de Polignac number, because 1616613201 - 2¹¹ = 1616611153 is a prime.

It is a super-2 number, since 2×1616613201² = 5226876483294932802, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1616613209) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 542646 + ... + 545616.

It is an arithmetic number, because the mean of its divisors is an integer number (85593600).

Almost surely, 2^1616613201 is an apocalyptic number.

It is an amenable number.

1616613201 is a deficient number, since it is larger than the sum of its proper divisors (1122381999).

1616613201 is a wasteful number, since it uses less digits than its factorization.

1616613201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5866 (or 5860 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 1616613201 is about 40207.1287335965. The cubic root of 1616613201 is about 1173.6412725793.

Adding to 1616613201 its reverse (1023166161), we get a palindrome (2639779362).

The spelling of 1616613201 in words is "one billion, six hundred sixteen million, six hundred thirteen thousand, two hundred one".