65593949137 has 4 divisors (see below), whose sum is σ = 65825730160. Its totient is φ = 65362168116.

The previous prime is 65593949131. The next prime is 65593949153. The reversal of 65593949137 is 73194939556.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65593949137 - 2¹⁹ = 65593424849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65593949131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115890087 + ... + 115890652.

It is an arithmetic number, because the mean of its divisors is an integer number (16456432540).

Almost surely, 2^65593949137 is an apocalyptic number.

It is an amenable number.

65593949137 is a deficient number, since it is larger than the sum of its proper divisors (231781023).

65593949137 is a wasteful number, since it uses less digits than its factorization.

65593949137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231781022.

The product of its digits is 27556200, while the sum is 61.

The spelling of 65593949137 in words is "sixty-five billion, five hundred ninety-three million, nine hundred forty-nine thousand, one hundred thirty-seven".