65616059 has 4 divisors (see below), whose sum is σ = 67389504. Its totient is φ = 63842616.

The previous prime is 65616007. The next prime is 65616127. The reversal of 65616059 is 95061656.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65616059 - 2²⁰ = 64567483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65613059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 886667 + ... + 886740.

It is an arithmetic number, because the mean of its divisors is an integer number (16847376).

Almost surely, 2^65616059 is an apocalyptic number.

65616059 is a deficient number, since it is larger than the sum of its proper divisors (1773445).

65616059 is a wasteful number, since it uses less digits than its factorization.

65616059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1773444.

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 65616059 is about 8100.3740037112. The cubic root of 65616059 is about 403.3388423687.

The spelling of 65616059 in words is "sixty-five million, six hundred sixteen thousand, fifty-nine".