65898911232 has 320 divisors, whose sum is σ = 243202291200. Its totient is φ = 17116323840.

The previous prime is 65898911227. The next prime is 65898911233. The reversal of 65898911232 is 23211989856.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65898911233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1033494 + ... + 1095402.

It is an arithmetic number, because the mean of its divisors is an integer number (760007160).

Almost surely, 2^65898911232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65898911232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121601145600).

65898911232 is an abundant number, since it is smaller than the sum of its proper divisors (177303379968).

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

65898911232 is a wasteful number, since it uses less digits than its factorization.

65898911232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61954 (or 61932 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 54.

The spelling of 65898911232 in words is "sixty-five billion, eight hundred ninety-eight million, nine hundred eleven thousand, two hundred thirty-two".