11665480637 has 8 divisors (see below), whose sum is σ = 12457021440. Its totient is φ = 10899892080.

The previous prime is 11665480609. The next prime is 11665480643. The reversal of 11665480637 is 73608456611.

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 11665480637 - 2⁶ = 11665480573 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11665480591 and 11665480600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11665480667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6487133 + ... + 6488930.

It is an arithmetic number, because the mean of its divisors is an integer number (1557127680).

Almost surely, 2^11665480637 is an apocalyptic number.

It is an amenable number.

11665480637 is a deficient number, since it is larger than the sum of its proper divisors (791540803).

11665480637 is a wasteful number, since it uses less digits than its factorization.

11665480637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12976123.

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 11665480637 in words is "eleven billion, six hundred sixty-five million, four hundred eighty thousand, six hundred thirty-seven".