166504026 has 32 divisors (see below), whose sum is σ = 359993088. Its totient is φ = 51036480.

The previous prime is 166504003. The next prime is 166504043. The reversal of 166504026 is 620405661.

It is a junction number, because it is equal to n+sod(n) for n = 166503984 and 166504002.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17200 + ... + 25076.

It is an arithmetic number, because the mean of its divisors is an integer number (11249784).

Almost surely, 2^166504026 is an apocalyptic number.

166504026 is an abundant number, since it is smaller than the sum of its proper divisors (193489062).

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

166504026 is a wasteful number, since it uses less digits than its factorization.

166504026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8166.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 166504026 is about 12903.6439039521. The cubic root of 166504026 is about 550.1421406728.

Adding to 166504026 its reverse (620405661), we get a palindrome (786909687).

The spelling of 166504026 in words is "one hundred sixty-six million, five hundred four thousand, twenty-six".