66534146 has 16 divisors (see below), whose sum is σ = 114390144. Its totient is φ = 28431744.

The previous prime is 66534137. The next prime is 66534151. The reversal of 66534146 is 64143566.

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, 1790 + ... + 11673.

It is an arithmetic number, because the mean of its divisors is an integer number (7149384).

Almost surely, 2^66534146 is an apocalyptic number.

66534146 is a deficient number, since it is larger than the sum of its proper divisors (47855998).

66534146 is a wasteful number, since it uses less digits than its factorization.

66534146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13825.

The product of its digits is 51840, while the sum is 35.

The square root of 66534146 is about 8156.8465720522. The cubic root of 66534146 is about 405.2112823303.

The spelling of 66534146 in words is "sixty-six million, five hundred thirty-four thousand, one hundred forty-six".