1063632564 has 18 divisors (see below), whose sum is σ = 2688626850. Its totient is φ = 354544176.

The previous prime is 1063632553. The next prime is 1063632613. The reversal of 1063632564 is 4652363601.

1063632564 is a `hidden beast` number, since 1 + 0 + 63 + 6 + 32 + 564 = 666.

It can be written as a sum of positive squares in only one way, i.e., 535552164 + 528080400 = 23142^2 + 22980^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×1063632564² = 2262628462402428192, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 29545349 = 1063632564 / (1 + 0 + 6 + 3 + 6 + 3 + 2 + 5 + 6 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14772639 + ... + 14772710.

Almost surely, 2^1063632564 is an apocalyptic number.

It is an amenable number.

1063632564 is an abundant number, since it is smaller than the sum of its proper divisors (1624994286).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1063632564 is a wasteful number, since it uses less digits than its factorization.

1063632564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29545359 (or 29545354 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The square root of 1063632564 is about 32613.3801376061. The cubic root of 1063632564 is about 1020.7762142305.

The spelling of 1063632564 in words is "one billion, sixty-three million, six hundred thirty-two thousand, five hundred sixty-four".