65121116 has 6 divisors (see below), whose sum is σ = 113961960. Its totient is φ = 32560556.

The previous prime is 65121103. The next prime is 65121127. The reversal of 65121116 is 61112156.

It is a junction number, because it is equal to n+sod(n) for n = 65121091 and 65121100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8140136 + ... + 8140143.

It is an arithmetic number, because the mean of its divisors is an integer number (18993660).

Almost surely, 2^65121116 is an apocalyptic number.

It is an amenable number.

65121116 is a deficient number, since it is larger than the sum of its proper divisors (48840844).

65121116 is a wasteful number, since it uses less digits than its factorization.

65121116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16280283 (or 16280281 counting only the distinct ones).

The product of its digits is 360, while the sum is 23.

The square root of 65121116 is about 8069.7655480193. The cubic root of 65121116 is about 402.3221512796.

The spelling of 65121116 in words is "sixty-five million, one hundred twenty-one thousand, one hundred sixteen".