65149873000 has 64 divisors (see below), whose sum is σ = 153363974400. Its totient is φ = 25903835200.

The previous prime is 65149872989. The next prime is 65149873001. The reversal of 65149873000 is 37894156.

It is a super-2 number, since 2×65149873000² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65149873001) 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 15 ways as a sum of consecutive naturals, for example, 28060 + ... + 362059.

It is an arithmetic number, because the mean of its divisors is an integer number (2396312100).

Almost surely, 2^65149873000 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 65149873000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76681987200).

65149873000 is an abundant number, since it is smaller than the sum of its proper divisors (88214101400).

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

65149873000 is a wasteful number, since it uses less digits than its factorization.

65149873000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390307 (or 390293 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 43.

The spelling of 65149873000 in words is "sixty-five billion, one hundred forty-nine million, eight hundred seventy-three thousand".