11663722637 has 8 divisors (see below), whose sum is σ = 13330760256. Its totient is φ = 9996882912.

The previous prime is 11663722621. The next prime is 11663722649. The reversal of 11663722637 is 73622736611.

11663722637 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 11663722637 - 2⁴ = 11663722621 is a prime.

It is a super-3 number, since 3×11663722637³ (a number of 31 digits) contains 333 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 (11663722687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111953 + ... + 189369.

It is an arithmetic number, because the mean of its divisors is an integer number (1666345032).

Almost surely, 2^11663722637 is an apocalyptic number.

It is an amenable number.

11663722637 is a deficient number, since it is larger than the sum of its proper divisors (1667037619).

11663722637 is an equidigital number, since it uses as much as digits as its factorization.

11663722637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98947.

The product of its digits is 381024, while the sum is 44.

The spelling of 11663722637 in words is "eleven billion, six hundred sixty-three million, seven hundred twenty-two thousand, six hundred thirty-seven".