65120165000 has 80 divisors (see below), whose sum is σ = 166447282320. Its totient is φ = 23680040000.

The previous prime is 65120164951. The next prime is 65120165003. The reversal of 65120165000 is 56102156.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (65120165003) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 537002 + ... + 647001.

It is an arithmetic number, because the mean of its divisors is an integer number (2080591029).

Almost surely, 2^65120165000 is an apocalyptic number.

It is an amenable number.

65120165000 is an abundant number, since it is smaller than the sum of its proper divisors (101327117320).

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

65120165000 is a wasteful number, since it uses less digits than its factorization.

65120165000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1184040 (or 1184021 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

Adding to 65120165000 its reverse (56102156), we get a palindrome (65176267156).

The spelling of 65120165000 in words is "sixty-five billion, one hundred twenty million, one hundred sixty-five thousand".