20616514 has 8 divisors (see below), whose sum is σ = 31348620. Its totient is φ = 10166976.

The previous prime is 20616493. The next prime is 20616517. The reversal of 20616514 is 41561602.

It can be written as a sum of positive squares in 2 ways, for example, as 20295025 + 321489 = 4505^2 + 567^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20616517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70459 + ... + 70750.

Almost surely, 2^20616514 is an apocalyptic number.

20616514 is a deficient number, since it is larger than the sum of its proper divisors (10732106).

20616514 is a wasteful number, since it uses less digits than its factorization.

20616514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141284.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 20616514 is about 4540.5411571750. The cubic root of 20616514 is about 274.2027110937.

The spelling of 20616514 in words is "twenty million, six hundred sixteen thousand, five hundred fourteen".