65830186240 has 144 divisors (see below), whose sum is σ = 194072796288. Its totient is φ = 20834131968.

The previous prime is 65830186223. The next prime is 65830186243. The reversal of 65830186240 is 4268103856.

It is a super-2 number, since 2×65830186240² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65830186243) 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 15 ways as a sum of consecutive naturals, for example, 166102 + ... + 399061.

It is an arithmetic number, because the mean of its divisors is an integer number (1347727752).

Almost surely, 2^65830186240 is an apocalyptic number.

It is an amenable number.

65830186240 is an abundant number, since it is smaller than the sum of its proper divisors (128242610048).

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

65830186240 is a wasteful number, since it uses less digits than its factorization.

65830186240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565204 (or 565190 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 43.

The spelling of 65830186240 in words is "sixty-five billion, eight hundred thirty million, one hundred eighty-six thousand, two hundred forty".