65211472336 has 40 divisors (see below), whose sum is σ = 126847521864. Its totient is φ = 32476753920.

The previous prime is 65211472331. The next prime is 65211472343. The reversal of 65211472336 is 63327411256.

It is a happy number.

65211472336 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 9534350736 + 55677121600 = 97644^2 + 235960^2 .

It is a super-2 number, since 2×65211472336² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65211472331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14629020 + ... + 14633476.

Almost surely, 2^65211472336 is an apocalyptic number.

It is an amenable number.

65211472336 is a deficient number, since it is larger than the sum of its proper divisors (61636049528).

65211472336 is a wasteful number, since it uses less digits than its factorization.

65211472336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7879 (or 7873 counting only the distinct ones).

The product of its digits is 181440, while the sum is 40.

The spelling of 65211472336 in words is "sixty-five billion, two hundred eleven million, four hundred seventy-two thousand, three hundred thirty-six".