65896629089 has 4 divisors (see below), whose sum is σ = 66208935600. Its totient is φ = 65584322580.

The previous prime is 65896629079. The next prime is 65896629101. The reversal of 65896629089 is 98092669856.

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 a de Polignac number, because none of the positive numbers 2^k-65896629089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65896629079) 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, 156152939 + ... + 156153360.

It is an arithmetic number, because the mean of its divisors is an integer number (16552233900).

Almost surely, 2^65896629089 is an apocalyptic number.

It is an amenable number.

65896629089 is a deficient number, since it is larger than the sum of its proper divisors (312306511).

65896629089 is a wasteful number, since it uses less digits than its factorization.

65896629089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312306510.

The product of its (nonzero) digits is 100776960, while the sum is 68.

The spelling of 65896629089 in words is "sixty-five billion, eight hundred ninety-six million, six hundred twenty-nine thousand, eighty-nine".