65078190 has 48 divisors (see below), whose sum is σ = 173785248. Its totient is φ = 16884288.

The previous prime is 65078177. The next prime is 65078191. The reversal of 65078190 is 9187056.

65078190 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×65078190² = 8470341627352200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65078191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6442 + ... + 13101.

It is an arithmetic number, because the mean of its divisors is an integer number (3620526).

Almost surely, 2^65078190 is an apocalyptic number.

65078190 is an abundant number, since it is smaller than the sum of its proper divisors (108707058).

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

65078190 is a wasteful number, since it uses less digits than its factorization.

65078190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19593 (or 19590 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 65078190 is about 8067.1054288388. The cubic root of 65078190 is about 402.2337320500.

The spelling of 65078190 in words is "sixty-five million, seventy-eight thousand, one hundred ninety".