11665651200787 has 8 divisors (see below), whose sum is σ = 11772750326480. Its totient is φ = 11558553435360.

The previous prime is 11665651200757. The next prime is 11665651200817. The reversal of 11665651200787 is 78700215656611.

It is an interprime number because it is at equal distance from previous prime (11665651200757) and next prime (11665651200817).

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 11665651200787 - 2¹⁵ = 11665651168019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11665651200757) 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, 26746237 + ... + 27178897.

It is an arithmetic number, because the mean of its divisors is an integer number (1471593790810).

Almost surely, 2^{11665651200787} is an apocalyptic number.

11665651200787 is a deficient number, since it is larger than the sum of its proper divisors (107099125693).

11665651200787 is a wasteful number, since it uses less digits than its factorization.

11665651200787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680133.

The product of its (nonzero) digits is 4233600, while the sum is 55.

The spelling of 11665651200787 in words is "eleven trillion, six hundred sixty-five billion, six hundred fifty-one million, two hundred thousand, seven hundred eighty-seven".