11662211757 has 24 divisors (see below), whose sum is σ = 18404940736. Its totient is φ = 6434313984.

The previous prime is 11662211741. The next prime is 11662211789. The reversal of 11662211757 is 75711226611.

It is not a de Polignac number, because 11662211757 - 2⁴ = 11662211741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11662211557) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 312508 + ... + 347829.

Almost surely, 2^11662211757 is an apocalyptic number.

It is an amenable number.

11662211757 is a deficient number, since it is larger than the sum of its proper divisors (6742728979).

11662211757 is an equidigital number, since it uses as much as digits as its factorization.

11662211757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660405 (or 660376 counting only the distinct ones).

The product of its digits is 35280, while the sum is 39.

The spelling of 11662211757 in words is "eleven billion, six hundred sixty-two million, two hundred eleven thousand, seven hundred fifty-seven".