65016501 has 32 divisors (see below), whose sum is σ = 97054848. Its totient is φ = 38384640.

The previous prime is 65016491. The next prime is 65016509. The reversal of 65016501 is 10561056.

It is not a de Polignac number, because 65016501 - 2⁷ = 65016373 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65016509) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 329935 + ... + 330131.

It is an arithmetic number, because the mean of its divisors is an integer number (3032964).

Almost surely, 2^65016501 is an apocalyptic number.

It is an amenable number.

65016501 is a deficient number, since it is larger than the sum of its proper divisors (32038347).

65016501 is a wasteful number, since it uses less digits than its factorization.

65016501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 65016501 is about 8063.2810319373. The cubic root of 65016501 is about 402.1065965678.

Adding to 65016501 its reverse (10561056), we get a palindrome (75577557).

Subtracting from 65016501 its reverse (10561056), we obtain a palindrome (54455445).

The spelling of 65016501 in words is "sixty-five million, sixteen thousand, five hundred one".