63511016 has 8 divisors (see below), whose sum is σ = 119083170. Its totient is φ = 31755504.

The previous prime is 63511003. The next prime is 63511057. The reversal of 63511016 is 61011536.

It is a happy number.

63511016 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 63138916 + 372100 = 7946^2 + 610^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 63510982 and 63511000.

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 as a sum of consecutive naturals, namely, 3969431 + ... + 3969446.

Almost surely, 2^63511016 is an apocalyptic number.

It is an amenable number.

63511016 is a deficient number, since it is larger than the sum of its proper divisors (55572154).

63511016 is a wasteful number, since it uses less digits than its factorization.

63511016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7938883 (or 7938879 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 63511016 is about 7969.3799005945. The cubic root of 63511016 is about 398.9786778052.

The spelling of 63511016 in words is "sixty-three million, five hundred eleven thousand, sixteen".