65165320248 has 32 divisors (see below), whose sum is σ = 186186629760. Its totient is φ = 18618662880.

The previous prime is 65165320219. The next prime is 65165320249. The reversal of 65165320248 is 84202356156.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65165320249) 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 7 ways as a sum of consecutive naturals, for example, 193944238 + ... + 193944573.

It is an arithmetic number, because the mean of its divisors is an integer number (5818332180).

Almost surely, 2^65165320248 is an apocalyptic number.

It is an amenable number.

65165320248 is an abundant number, since it is smaller than the sum of its proper divisors (121021309512).

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

65165320248 is a wasteful number, since it uses less digits than its factorization.

65165320248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387888827 (or 387888823 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 42.

The spelling of 65165320248 in words is "sixty-five billion, one hundred sixty-five million, three hundred twenty thousand, two hundred forty-eight".