63576465616 has 20 divisors (see below), whose sum is σ = 123183804100. Its totient is φ = 31787096832.

The previous prime is 63576465613. The next prime is 63576465619. The reversal of 63576465616 is 61656467536.

It is an interprime number because it is at equal distance from previous prime (63576465613) and next prime (63576465619).

It can be written as a sum of positive squares in 2 ways, for example, as 38574531216 + 25001934400 = 196404^2 + 158120^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63576465613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 561430 + ... + 665098.

It is an arithmetic number, because the mean of its divisors is an integer number (6159190205).

Almost surely, 2^63576465616 is an apocalyptic number.

It is an amenable number.

63576465616 is a deficient number, since it is larger than the sum of its proper divisors (59607338484).

63576465616 is a wasteful number, since it uses less digits than its factorization.

63576465616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142006 (or 142000 counting only the distinct ones).

The product of its digits is 16329600, while the sum is 55.

The spelling of 63576465616 in words is "sixty-three billion, five hundred seventy-six million, four hundred sixty-five thousand, six hundred sixteen".