65201964 has 48 divisors (see below), whose sum is σ = 160392960. Its totient is φ = 20574400.

The previous prime is 65201963. The next prime is 65201971. The reversal of 65201964 is 46910256.

It is a super-2 number, since 2×65201964² = 8502592218914592, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65201963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26707 + ... + 29045.

It is an arithmetic number, because the mean of its divisors is an integer number (3341520).

Almost surely, 2^65201964 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 65201964, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80196480).

65201964 is an abundant number, since it is smaller than the sum of its proper divisors (95190996).

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

65201964 is a wasteful number, since it uses less digits than its factorization.

65201964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2470 (or 2468 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 65201964 is about 8074.7733095115. The cubic root of 65201964 is about 402.4885770198.

The spelling of 65201964 in words is "sixty-five million, two hundred one thousand, nine hundred sixty-four".