66070146 has 16 divisors (see below), whose sum is σ = 133376544. Its totient is φ = 21817344.

The previous prime is 66070141. The next prime is 66070187. The reversal of 66070146 is 64107066.

It is a super-2 number, since 2×66070146² = 8730528384922632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (66070141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50815 + ... + 52098.

It is an arithmetic number, because the mean of its divisors is an integer number (8336034).

Almost surely, 2^66070146 is an apocalyptic number.

66070146 is an abundant number, since it is smaller than the sum of its proper divisors (67306398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66070146 is a wasteful number, since it uses less digits than its factorization.

66070146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103025.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 66070146 is about 8128.3544460118. The cubic root of 66070146 is about 404.2671214832.

The spelling of 66070146 in words is "sixty-six million, seventy thousand, one hundred forty-six".