65216410 has 32 divisors (see below), whose sum is σ = 134628480. Its totient is φ = 22281792.

The previous prime is 65216399. The next prime is 65216413. The reversal of 65216410 is 1461256.

It is not an unprimeable number, because it can be changed into a prime (65216413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20721 + ... + 23659.

It is an arithmetic number, because the mean of its divisors is an integer number (4207140).

Almost surely, 2^65216410 is an apocalyptic number.

65216410 is an abundant number, since it is smaller than the sum of its proper divisors (69412070).

65216410 is a wasteful number, since it uses less digits than its factorization.

65216410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3270.

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

The square root of 65216410 is about 8075.6677742463. The cubic root of 65216410 is about 402.5182996451.

Adding to 65216410 its reverse (1461256), we get a palindrome (66677666).

The spelling of 65216410 in words is "sixty-five million, two hundred sixteen thousand, four hundred ten".