166516042 has 32 divisors (see below), whose sum is σ = 315371520. Its totient is φ = 64050480.

The previous prime is 166516039. The next prime is 166516043. The reversal of 166516042 is 240615661.

It is a junction number, because it is equal to n+sod(n) for n = 166515995 and 166516013.

It is not an unprimeable number, because it can be changed into a prime (166516043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5323 + ... + 19009.

It is an arithmetic number, because the mean of its divisors is an integer number (9855360).

Almost surely, 2^166516042 is an apocalyptic number.

166516042 is a deficient number, since it is larger than the sum of its proper divisors (148855478).

166516042 is a wasteful number, since it uses less digits than its factorization.

166516042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13786.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 166516042 is about 12904.1095004653. The cubic root of 166516042 is about 550.1553742847.

The spelling of 166516042 in words is "one hundred sixty-six million, five hundred sixteen thousand, forty-two".