65140206619 has 2 divisors, whose sum is σ = 65140206620. Its totient is φ = 65140206618.

The previous prime is 65140206611. The next prime is 65140206683. The reversal of 65140206619 is 91660204156.

It is a happy number.

65140206619 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65140206619 - 2³ = 65140206611 is a prime.

It is a super-2 number, since 2×65140206619² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (65140206611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32570103309 + 32570103310.

It is an arithmetic number, because the mean of its divisors is an integer number (32570103310).

Almost surely, 2^65140206619 is an apocalyptic number.

65140206619 is a deficient number, since it is larger than the sum of its proper divisors (1).

65140206619 is an equidigital number, since it uses as much as digits as its factorization.

65140206619 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 40.

The spelling of 65140206619 in words is "sixty-five billion, one hundred forty million, two hundred six thousand, six hundred nineteen".