65120061 has 8 divisors (see below), whose sum is σ = 90601920. Its totient is φ = 41525792.

The previous prime is 65120059. The next prime is 65120071. The reversal of 65120061 is 16002156.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65120061 - 2¹ = 65120059 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65120071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 471816 + ... + 471953.

It is an arithmetic number, because the mean of its divisors is an integer number (11325240).

Almost surely, 2^65120061 is an apocalyptic number.

It is an amenable number.

65120061 is a deficient number, since it is larger than the sum of its proper divisors (25481859).

65120061 is a wasteful number, since it uses less digits than its factorization.

65120061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943795.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 65120061 is about 8069.7001803041. The cubic root of 65120061 is about 402.3199786501.

The spelling of 65120061 in words is "sixty-five million, one hundred twenty thousand, sixty-one".