11020666136551 has 8 divisors (see below), whose sum is σ = 11107560927744. Its totient is φ = 10933773187680.

The previous prime is 11020666136539. The next prime is 11020666136611. The reversal of 11020666136551 is 15563166602011.

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-11020666136551 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11020666136498 and 11020666136507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11020666136531) 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, 13123461 + ... + 13937953.

It is an arithmetic number, because the mean of its divisors is an integer number (1388445115968).

Almost surely, 2^{11020666136551} is an apocalyptic number.

11020666136551 is a deficient number, since it is larger than the sum of its proper divisors (86894791193).

11020666136551 is a wasteful number, since it uses less digits than its factorization.

11020666136551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921161.

The product of its (nonzero) digits is 194400, while the sum is 43.

The spelling of 11020666136551 in words is "eleven trillion, twenty billion, six hundred sixty-six million, one hundred thirty-six thousand, five hundred fifty-one".