65166955350 has 192 divisors, whose sum is σ = 191097864192. Its totient is φ = 14381712000.

The previous prime is 65166955349. The next prime is 65166955367. The reversal of 65166955350 is 5355966156.

It is a junction number, because it is equal to n+sod(n) for n = 65166955293 and 65166955302.

It is a congruent number.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 15849795 + ... + 15853905.

It is an arithmetic number, because the mean of its divisors is an integer number (995301376).

Almost surely, 2^65166955350 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65166955350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95548932096).

65166955350 is an abundant number, since it is smaller than the sum of its proper divisors (125930908842).

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

65166955350 is a wasteful number, since it uses less digits than its factorization.

65166955350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4651 (or 4646 counting only the distinct ones).

The product of its (nonzero) digits is 3645000, while the sum is 51.

The spelling of 65166955350 in words is "sixty-five billion, one hundred sixty-six million, nine hundred fifty-five thousand, three hundred fifty".