65016519 has 8 divisors (see below), whose sum is σ = 86783472. Its totient is φ = 43296960.

The previous prime is 65016509. The next prime is 65016527. The reversal of 65016519 is 91561056.

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

It is not a de Polignac number, because 65016519 - 2¹⁹ = 64492231 is a prime.

It is a super-2 number, since 2×65016519² = 8454295485754722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 65016519.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65016509) 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, 8512 + ... + 14229.

It is an arithmetic number, because the mean of its divisors is an integer number (10847934).

Almost surely, 2^65016519 is an apocalyptic number.

65016519 is a deficient number, since it is larger than the sum of its proper divisors (21766953).

65016519 is a wasteful number, since it uses less digits than its factorization.

65016519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23697.

The product of its (nonzero) digits is 8100, while the sum is 33.

The square root of 65016519 is about 8063.2821481082. The cubic root of 65016519 is about 402.1066336759.

The spelling of 65016519 in words is "sixty-five million, sixteen thousand, five hundred nineteen".