63616612 has 6 divisors (see below), whose sum is σ = 111329078. Its totient is φ = 31808304.

The previous prime is 63616603. The next prime is 63616621. The reversal of 63616612 is 21661636.

It is an interprime number because it is at equal distance from previous prime (63616603) and next prime (63616621).

It can be written as a sum of positive squares in only one way, i.e., 63616576 + 36 = 7976^2 + 6^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7952073 + ... + 7952080.

Almost surely, 2^63616612 is an apocalyptic number.

It is an amenable number.

63616612 is a deficient number, since it is larger than the sum of its proper divisors (47712466).

63616612 is a wasteful number, since it uses less digits than its factorization.

63616612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15904157 (or 15904155 counting only the distinct ones).

The product of its digits is 7776, while the sum is 31.

The square root of 63616612 is about 7976.0022567700. The cubic root of 63616612 is about 399.1996747668.

The spelling of 63616612 in words is "sixty-three million, six hundred sixteen thousand, six hundred twelve".