65215232298 has 64 divisors (see below), whose sum is σ = 148096235520. Its totient is φ = 21262950576.

The previous prime is 65215232281. The next prime is 65215232419. The reversal of 65215232298 is 89223251256.

65215232298 is a `hidden beast` number, since 6 + 521 + 5 + 2 + 32 + 2 + 98 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4731565 + ... + 4745327.

It is an arithmetic number, because the mean of its divisors is an integer number (2314003680).

Almost surely, 2^65215232298 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65215232298, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74048117760).

65215232298 is an abundant number, since it is smaller than the sum of its proper divisors (82881003222).

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

65215232298 is a wasteful number, since it uses less digits than its factorization.

65215232298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15688 (or 15682 counting only the distinct ones).

The product of its digits is 518400, while the sum is 45.

The spelling of 65215232298 in words is "sixty-five billion, two hundred fifteen million, two hundred thirty-two thousand, two hundred ninety-eight".