65616741 has 6 divisors (see below), whose sum is σ = 94779750. Its totient is φ = 43744488.

The previous prime is 65616731. The next prime is 65616743. The reversal of 65616741 is 14761656.

It can be written as a sum of positive squares in only one way, i.e., 53714241 + 11902500 = 7329^2 + 3450^2 .

It is not a de Polignac number, because 65616741 - 2¹⁴ = 65600357 is a prime.

It is a super-2 number, since 2×65616741² = 8611113398922162, which contains 22 as substring.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 65616696 and 65616705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65616743) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3645366 + ... + 3645383.

It is an arithmetic number, because the mean of its divisors is an integer number (15796625).

Almost surely, 2^65616741 is an apocalyptic number.

It is an amenable number.

65616741 is a deficient number, since it is larger than the sum of its proper divisors (29163009).

65616741 is a wasteful number, since it uses less digits than its factorization.

65616741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7290755 (or 7290752 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 65616741 is about 8100.4161004235. The cubic root of 65616741 is about 403.3402397712.

The spelling of 65616741 in words is "sixty-five million, six hundred sixteen thousand, seven hundred forty-one".