65299641 has 16 divisors (see below), whose sum is σ = 95171328. Its totient is φ = 39496400.

The previous prime is 65299627. The next prime is 65299643. The reversal of 65299641 is 14699256.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 65299641 - 2¹³ = 65291449 is a prime.

It is a super-2 number, since 2×65299641² = 8528086229457762, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 65299593 and 65299602.

It is not an unprimeable number, because it can be changed into a prime (65299643) 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, 17686 + ... + 21056.

It is an arithmetic number, because the mean of its divisors is an integer number (5948208).

Almost surely, 2^65299641 is an apocalyptic number.

It is an amenable number.

65299641 is a deficient number, since it is larger than the sum of its proper divisors (29871687).

65299641 is a wasteful number, since it uses less digits than its factorization.

65299641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3972.

The product of its digits is 116640, while the sum is 42.

The square root of 65299641 is about 8080.8193272712. The cubic root of 65299641 is about 402.6894618757.

The spelling of 65299641 in words is "sixty-five million, two hundred ninety-nine thousand, six hundred forty-one".