11555026141666 has 256 divisors, whose sum is σ = 23737079808000. Its totient is φ = 4182367343616.

The previous prime is 11555026141661. The next prime is 11555026141691. The reversal of 11555026141666 is 66614162055511.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (11555026141661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 524907276 + ... + 524929288.

It is an arithmetic number, because the mean of its divisors is an integer number (92722968000).

Almost surely, 2^{11555026141666} is an apocalyptic number.

11555026141666 is an abundant number, since it is smaller than the sum of its proper divisors (12182053666334).

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

11555026141666 is a wasteful number, since it uses less digits than its factorization.

11555026141666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22198 (or 22184 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 49.

The spelling of 11555026141666 in words is "eleven trillion, five hundred fifty-five billion, twenty-six million, one hundred forty-one thousand, six hundred sixty-six".