11335566471642 has 216 divisors, whose sum is σ = 29955812848416. Its totient is φ = 3207270526992.

The previous prime is 11335566471641. The next prime is 11335566471667. The reversal of 11335566471642 is 24617466553311.

11335566471642 is a `hidden beast` number, since 1 + 1 + 3 + 3 + 5 + 566 + 4 + 71 + 6 + 4 + 2 = 666.

11335566471642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11335566471642² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (11335566471641) by changing a digit.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 66141153 + ... + 66312315.

Almost surely, 2^{11335566471642} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11335566471642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14977906424208).

11335566471642 is an abundant number, since it is smaller than the sum of its proper divisors (18620246376774).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11335566471642 is an equidigital number, since it uses as much as digits as its factorization.

11335566471642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171306 (or 171278 counting only the distinct ones).

The product of its digits is 10886400, while the sum is 54.

The spelling of 11335566471642 in words is "eleven trillion, three hundred thirty-five billion, five hundred sixty-six million, four hundred seventy-one thousand, six hundred forty-two".