166516154 has 16 divisors (see below), whose sum is σ = 286939968. Its totient is φ = 70993152.

The previous prime is 166516127. The next prime is 166516157. The reversal of 166516154 is 451615661.

It is not an unprimeable number, because it can be changed into a prime (166516157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28112 + ... + 33515.

It is an arithmetic number, because the mean of its divisors is an integer number (17933748).

Almost surely, 2^166516154 is an apocalyptic number.

166516154 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

166516154 is a deficient number, since it is larger than the sum of its proper divisors (120423814).

166516154 is a wasteful number, since it uses less digits than its factorization.

166516154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61829.

The product of its digits is 21600, while the sum is 35.

The square root of 166516154 is about 12904.1138401674. The cubic root of 166516154 is about 550.1554976309.

The spelling of 166516154 in words is "one hundred sixty-six million, five hundred sixteen thousand, one hundred fifty-four".