166567942 has 8 divisors (see below), whose sum is σ = 253948032. Its totient is φ = 81918600.

The previous prime is 166567937. The next prime is 166567957. The reversal of 166567942 is 249765661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 166567892 and 166567901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 682534 + ... + 682777.

It is an arithmetic number, because the mean of its divisors is an integer number (31743504).

Almost surely, 2^166567942 is an apocalyptic number.

166567942 is a deficient number, since it is larger than the sum of its proper divisors (87380090).

166567942 is a wasteful number, since it uses less digits than its factorization.

166567942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1365374.

The product of its digits is 544320, while the sum is 46.

The square root of 166567942 is about 12906.1203310677. The cubic root of 166567942 is about 550.2125261314.

The spelling of 166567942 in words is "one hundred sixty-six million, five hundred sixty-seven thousand, nine hundred forty-two".