65898299892 has 12 divisors (see below), whose sum is σ = 153762699776. Its totient is φ = 21966099960.

The previous prime is 65898299851. The next prime is 65898299893. The reversal of 65898299892 is 29899289856.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65898299893) 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, 2745762484 + ... + 2745762507.

Almost surely, 2^65898299892 is an apocalyptic number.

It is an amenable number.

65898299892 is an abundant number, since it is smaller than the sum of its proper divisors (87864399884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65898299892 is a wasteful number, since it uses less digits than its factorization.

65898299892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5491524998 (or 5491524996 counting only the distinct ones).

The product of its digits is 403107840, while the sum is 75.

The spelling of 65898299892 in words is "sixty-five billion, eight hundred ninety-eight million, two hundred ninety-nine thousand, eight hundred ninety-two".