63965696552 has 16 divisors (see below), whose sum is σ = 126248085600. Its totient is φ = 30299540400.

The previous prime is 63965696551. The next prime is 63965696593. The reversal of 63965696552 is 25569656936.

It is a super-2 number, since 2×63965696552² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (63965696551) 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, 210413324 + ... + 210413627.

It is an arithmetic number, because the mean of its divisors is an integer number (7890505350).

Almost surely, 2^63965696552 is an apocalyptic number.

It is an amenable number.

63965696552 is a deficient number, since it is larger than the sum of its proper divisors (62282389048).

63965696552 is a wasteful number, since it uses less digits than its factorization.

63965696552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420826976 (or 420826972 counting only the distinct ones).

The product of its digits is 78732000, while the sum is 62.

The spelling of 63965696552 in words is "sixty-three billion, nine hundred sixty-five million, six hundred ninety-six thousand, five hundred fifty-two".