10663551 has 6 divisors (see below), whose sum is σ = 15402920. Its totient is φ = 7109028.

The previous prime is 10663529. The next prime is 10663553. The reversal of 10663551 is 15536601.

It is a happy number.

10663551 is a `hidden beast` number, since 106 + 6 + 3 + 551 = 666.

It is not a de Polignac number, because 10663551 - 2⁷ = 10663423 is a prime.

It is a super-2 number, since 2×10663551² = 227422639859202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10663553) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 592411 + ... + 592428.

Almost surely, 2^10663551 is an apocalyptic number.

10663551 is a deficient number, since it is larger than the sum of its proper divisors (4739369).

10663551 is a wasteful number, since it uses less digits than its factorization.

10663551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1184845 (or 1184842 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 10663551 is about 3265.5093017782. The cubic root of 10663551 is about 220.1070484545.

The spelling of 10663551 in words is "ten million, six hundred sixty-three thousand, five hundred fifty-one".