20610016 has 24 divisors (see below), whose sum is σ = 46373040. Its totient is φ = 8832768.

The previous prime is 20610013. The next prime is 20610043. The reversal of 20610016 is 61001602.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20610013) 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, 45781 + ... + 46228.

It is an arithmetic number, because the mean of its divisors is an integer number (1932210).

Almost surely, 2^20610016 is an apocalyptic number.

It is an amenable number.

20610016 is an abundant number, since it is smaller than the sum of its proper divisors (25763024).

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

20610016 is an equidigital number, since it uses as much as digits as its factorization.

20610016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92026 (or 92018 counting only the distinct ones).

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

The square root of 20610016 is about 4539.8255473091. The cubic root of 20610016 is about 274.1738999435.

Adding to 20610016 its reverse (61001602), we get a palindrome (81611618).

It can be divided in two parts, 206100 and 16, that added together give a square (206116 = 454²).

The spelling of 20610016 in words is "twenty million, six hundred ten thousand, sixteen".