65136960000 has 1000 divisors, whose sum is σ = 278422626240. Its totient is φ = 14846976000.

The previous prime is 65136959933. The next prime is 65136960017. The reversal of 65136960000 is 6963156.

It is a tau number, because it is divible by the number of its divisors (1000).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 99 ways as a sum of consecutive naturals, for example, 181439821 + ... + 181440179.

Almost surely, 2^65136960000 is an apocalyptic number.

65136960000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65136960000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139211313120).

65136960000 is an abundant number, since it is smaller than the sum of its proper divisors (213285666240).

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

65136960000 is an frugal number, since it uses more digits than its factorization.

65136960000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416 (or 376 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The spelling of 65136960000 in words is "sixty-five billion, one hundred thirty-six million, nine hundred sixty thousand".