166544741376 has 528 divisors, whose sum is σ = 569024077440. Its totient is φ = 46422097920.

The previous prime is 166544741371. The next prime is 166544741387. The reversal of 166544741376 is 673147445661.

166544741376 is a `hidden beast` number, since 1 + 6 + 65 + 447 + 4 + 137 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166544741371) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 52354506 + ... + 52357686.

Almost surely, 2^166544741376 is an apocalyptic number.

166544741376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166544741376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (284512038720).

166544741376 is an abundant number, since it is smaller than the sum of its proper divisors (402479336064).

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

166544741376 is a wasteful number, since it uses less digits than its factorization.

166544741376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3262 (or 3241 counting only the distinct ones).

The product of its digits is 10160640, while the sum is 54.

The spelling of 166544741376 in words is "one hundred sixty-six billion, five hundred forty-four million, seven hundred forty-one thousand, three hundred seventy-six".