65016651 has 32 divisors (see below), whose sum is σ = 106536960. Its totient is φ = 34438176.

The previous prime is 65016583. The next prime is 65016661. The reversal of 65016651 is 15661056.

It is not a de Polignac number, because 65016651 - 2⁹ = 65016139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65016661) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17020 + ... + 20486.

It is an arithmetic number, because the mean of its divisors is an integer number (3329280).

Almost surely, 2^65016651 is an apocalyptic number.

65016651 is a deficient number, since it is larger than the sum of its proper divisors (41520309).

65016651 is a wasteful number, since it uses less digits than its factorization.

65016651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3543.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 65016651 is about 8063.2903333565. The cubic root of 65016651 is about 402.1069058018.

The spelling of 65016651 in words is "sixty-five million, sixteen thousand, six hundred fifty-one".