166145526 has 32 divisors (see below), whose sum is σ = 369784800. Its totient is φ = 55296000.

The previous prime is 166145477. The next prime is 166145527. The reversal of 166145526 is 625541661.

166145526 is a `hidden beast` number, since 16 + 614 + 5 + 5 + 26 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166145527) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39526 + ... + 43526.

It is an arithmetic number, because the mean of its divisors is an integer number (11555775).

Almost surely, 2^166145526 is an apocalyptic number.

166145526 is an abundant number, since it is smaller than the sum of its proper divisors (203639274).

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

166145526 is a wasteful number, since it uses less digits than its factorization.

166145526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4781 (or 4775 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 166145526 is about 12889.7449935986. The cubic root of 166145526 is about 549.7470197442.

The spelling of 166145526 in words is "one hundred sixty-six million, one hundred forty-five thousand, five hundred twenty-six".