65620235516213 has 8 divisors (see below), whose sum is σ = 74997557620032. Its totient is φ = 56243664098496.

The previous prime is 65620235516201. The next prime is 65620235516233. The reversal of 65620235516213 is 31261553202656.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 65620235516213 - 2⁶ = 65620235516149 is a prime.

It is a super-2 number, since 2×65620235516213² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65620235516233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187484195 + ... + 187833872.

It is an arithmetic number, because the mean of its divisors is an integer number (9374694702504).

Almost surely, 2^{65620235516213} is an apocalyptic number.

It is an amenable number.

65620235516213 is a deficient number, since it is larger than the sum of its proper divisors (9377322103819).

65620235516213 is a wasteful number, since it uses less digits than its factorization.

65620235516213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375343051.

The product of its (nonzero) digits is 1944000, while the sum is 47.

Adding to 65620235516213 its reverse (31261553202656), we get a palindrome (96881788718869).

The spelling of 65620235516213 in words is "sixty-five trillion, six hundred twenty billion, two hundred thirty-five million, five hundred sixteen thousand, two hundred thirteen".