166204742 has 32 divisors (see below), whose sum is σ = 296179200. Its totient is φ = 69098400.

The previous prime is 166204679. The next prime is 166204757. The reversal of 166204742 is 247402661.

It is a junction number, because it is equal to n+sod(n) for n = 166204699 and 166204708.

It is a congruent number.

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, 5267 + ... + 18977.

It is an arithmetic number, because the mean of its divisors is an integer number (9255600).

Almost surely, 2^166204742 is an apocalyptic number.

166204742 is a deficient number, since it is larger than the sum of its proper divisors (129974458).

166204742 is a wasteful number, since it uses less digits than its factorization.

166204742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13772.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 166204742 is about 12892.0418088059. The cubic root of 166204742 is about 549.8123238455.

The spelling of 166204742 in words is "one hundred sixty-six million, two hundred four thousand, seven hundred forty-two".