166396527 has 24 divisors (see below), whose sum is σ = 277626960. Its totient is φ = 94913280.

The previous prime is 166396469. The next prime is 166396553. The reversal of 166396527 is 725693661.

166396527 is a `hidden beast` number, since 1 + 6 + 639 + 6 + 5 + 2 + 7 = 666.

It is not a de Polignac number, because 166396527 - 2¹⁰ = 166395503 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166396427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47752 + ... + 51117.

It is an arithmetic number, because the mean of its divisors is an integer number (11567790).

Almost surely, 2^166396527 is an apocalyptic number.

166396527 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

166396527 is a deficient number, since it is larger than the sum of its proper divisors (111230433).

166396527 is a wasteful number, since it uses less digits than its factorization.

166396527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98903 (or 98900 counting only the distinct ones).

The product of its digits is 408240, while the sum is 45.

The square root of 166396527 is about 12899.4777801274. The cubic root of 166396527 is about 550.0237201891.

It can be divided in two parts, 166 and 396527, that added together give a palindrome (396693).

The spelling of 166396527 in words is "one hundred sixty-six million, three hundred ninety-six thousand, five hundred twenty-seven".