63116965 has 4 divisors (see below), whose sum is σ = 75740364. Its totient is φ = 50493568.

The previous prime is 63116959. The next prime is 63116987. The reversal of 63116965 is 56961136.

63116965 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 40525956 + 22591009 = 6366^2 + 4753^2 .

It is a cyclic number.

It is not a de Polignac number, because 63116965 - 2³ = 63116957 is a prime.

It is a super-2 number, since 2×63116965² = 7967502541622450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6311692 + ... + 6311701.

It is an arithmetic number, because the mean of its divisors is an integer number (18935091).

Almost surely, 2^63116965 is an apocalyptic number.

It is an amenable number.

63116965 is a deficient number, since it is larger than the sum of its proper divisors (12623399).

63116965 is a wasteful number, since it uses less digits than its factorization.

63116965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12623398.

The product of its digits is 29160, while the sum is 37.

The square root of 63116965 is about 7944.6186189143. The cubic root of 63116965 is about 398.1518174553.

The spelling of 63116965 in words is "sixty-three million, one hundred sixteen thousand, nine hundred sixty-five".