11663163551 has 8 divisors (see below), whose sum is σ = 12561813264. Its totient is φ = 10764725760.

The previous prime is 11663163529. The next prime is 11663163563. The reversal of 11663163551 is 15536136611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11663163551 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11663163251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72320 + ... + 168986.

It is an arithmetic number, because the mean of its divisors is an integer number (1570226658).

Almost surely, 2^11663163551 is an apocalyptic number.

11663163551 is a deficient number, since it is larger than the sum of its proper divisors (898649713).

11663163551 is an equidigital number, since it uses as much as digits as its factorization.

11663163551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105961.

The product of its digits is 48600, while the sum is 38.

The spelling of 11663163551 in words is "eleven billion, six hundred sixty-three million, one hundred sixty-three thousand, five hundred fifty-one".