65612010 has 64 divisors (see below), whose sum is σ = 168210432. Its totient is φ = 16321536.

The previous prime is 65612003. The next prime is 65612051. The reversal of 65612010 is 1021656.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64264 + ... + 65276.

It is an arithmetic number, because the mean of its divisors is an integer number (2628288).

Almost surely, 2^65612010 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65612010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84105216).

65612010 is an abundant number, since it is smaller than the sum of its proper divisors (102598422).

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

65612010 is a wasteful number, since it uses less digits than its factorization.

65612010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1167.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 65612010 is about 8100.1240731238. The cubic root of 65612010 is about 403.3305458603.

Adding to 65612010 its reverse (1021656), we get a palindrome (66633666).

The spelling of 65612010 in words is "sixty-five million, six hundred twelve thousand, ten".