166208004 has 24 divisors (see below), whose sum is σ = 430909920. Its totient is φ = 55402632.

The previous prime is 166207969. The next prime is 166208011. The reversal of 166208004 is 400802661.

It is a super-3 number, since 3×166208004³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 769374 + ... + 769589.

It is an arithmetic number, because the mean of its divisors is an integer number (17954580).

Almost surely, 2^166208004 is an apocalyptic number.

It is an amenable number.

166208004 is an abundant number, since it is smaller than the sum of its proper divisors (264701916).

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

166208004 is a wasteful number, since it uses less digits than its factorization.

166208004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1538976 (or 1538968 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 166208004 is about 12892.1683203408. The cubic root of 166208004 is about 549.8159207666.

The spelling of 166208004 in words is "one hundred sixty-six million, two hundred eight thousand, four".