166526668476 has 168 divisors, whose sum is σ = 501145886304. Its totient is φ = 47408094720.

The previous prime is 166526668471. The next prime is 166526668523. The reversal of 166526668476 is 674866625661.

It is a super-2 number, since 2×166526668476² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166526668471) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 5721256 + ... + 5750288.

It is an arithmetic number, because the mean of its divisors is an integer number (2983011228).

Almost surely, 2^166526668476 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166526668476, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250572943152).

166526668476 is an abundant number, since it is smaller than the sum of its proper divisors (334619217828).

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

166526668476 is a wasteful number, since it uses less digits than its factorization.

166526668476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29343 (or 29326 counting only the distinct ones).

The product of its digits is 104509440, while the sum is 63.

The spelling of 166526668476 in words is "one hundred sixty-six billion, five hundred twenty-six million, six hundred sixty-eight thousand, four hundred seventy-six".