63960065 has 16 divisors (see below), whose sum is σ = 82983936. Its totient is φ = 47044800.

The previous prime is 63960031. The next prime is 63960089. The reversal of 63960065 is 56006936.

It is not a de Polignac number, because 63960065 - 2¹⁰ = 63959041 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15800 + ... + 19430.

It is an arithmetic number, because the mean of its divisors is an integer number (5186496).

Almost surely, 2^63960065 is an apocalyptic number.

63960065 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

63960065 is a deficient number, since it is larger than the sum of its proper divisors (19023871).

63960065 is a wasteful number, since it uses less digits than its factorization.

63960065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3920.

The product of its (nonzero) digits is 29160, while the sum is 35.

The square root of 63960065 is about 7997.5036730220. The cubic root of 63960065 is about 399.9167847726.

The spelling of 63960065 in words is "sixty-three million, nine hundred sixty thousand, sixty-five".