65105601 has 16 divisors (see below), whose sum is σ = 94987200. Its totient is φ = 39337920.

The previous prime is 65105587. The next prime is 65105603. The reversal of 65105601 is 10650156.

It is not a de Polignac number, because 65105601 - 2⁷ = 65105473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65105603) 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, 8691 + ... + 14343.

It is an arithmetic number, because the mean of its divisors is an integer number (5936700).

Almost surely, 2^65105601 is an apocalyptic number.

It is an amenable number.

65105601 is a deficient number, since it is larger than the sum of its proper divisors (29881599).

65105601 is a wasteful number, since it uses less digits than its factorization.

65105601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6016.

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

The square root of 65105601 is about 8068.8041864950. The cubic root of 65105601 is about 402.2901978757.

Adding to 65105601 its reverse (10650156), we get a palindrome (75755757).

Subtracting from 65105601 its reverse (10650156), we obtain a palindrome (54455445).

The spelling of 65105601 in words is "sixty-five million, one hundred five thousand, six hundred one".