166454261106066 has 16 divisors (see below), whose sum is σ = 369898358013600. Its totient is φ = 55484753702004.

The previous prime is 166454261106047. The next prime is 166454261106169. The reversal of 166454261106066 is 660601162454661.

It is a happy number.

166454261106066 is a `hidden beast` number, since 1 + 6 + 6 + 4 + 5 + 4 + 26 + 1 + 1 + 0 + 606 + 6 = 666.

166454261106066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 3082486316779 = 166454261106066 / (1 + 6 + 6 + 4 + 5 + 4 + 2 + 6 + 1 + 1 + 0 + 6 + 0 + 6 + 6).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1541243158336 + ... + 1541243158443.

It is an arithmetic number, because the mean of its divisors is an integer number (23118647375850).

Almost surely, 2^{166454261106066} is an apocalyptic number.

166454261106066 is an abundant number, since it is smaller than the sum of its proper divisors (203444096907534).

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

166454261106066 is a wasteful number, since it uses less digits than its factorization.

166454261106066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3082486316790 (or 3082486316784 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 54.

The spelling of 166454261106066 in words is "one hundred sixty-six trillion, four hundred fifty-four billion, two hundred sixty-one million, one hundred six thousand, sixty-six".