20616010 has 8 divisors (see below), whose sum is σ = 37108836. Its totient is φ = 8246400.

The previous prime is 20615977. The next prime is 20616017. The reversal of 20616010 is 1061602.

It can be written as a sum of positive squares in 2 ways, for example, as 19811401 + 804609 = 4451^2 + 897^2 .

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 (20616017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1030791 + ... + 1030810.

Almost surely, 2^20616010 is an apocalyptic number.

20616010 is a deficient number, since it is larger than the sum of its proper divisors (16492826).

20616010 is a wasteful number, since it uses less digits than its factorization.

20616010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2061608.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 20616010 is about 4540.4856568433. The cubic root of 20616010 is about 274.2004766505.

Adding to 20616010 its reverse (1061602), we get a palindrome (21677612).

The spelling of 20616010 in words is "twenty million, six hundred sixteen thousand, ten".