66130142 has 16 divisors (see below), whose sum is σ = 107376192. Its totient is φ = 30364320.

The previous prime is 66130133. The next prime is 66130147. The reversal of 66130142 is 24103166.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66130147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1334 + ... + 11577.

It is an arithmetic number, because the mean of its divisors is an integer number (6711012).

Almost surely, 2^66130142 is an apocalyptic number.

66130142 is a deficient number, since it is larger than the sum of its proper divisors (41246050).

66130142 is a wasteful number, since it uses less digits than its factorization.

66130142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13123.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 66130142 is about 8132.0441464616. The cubic root of 66130142 is about 404.3894514303.

It can be divided in two parts, 661 and 30142, that added together give a palindrome (30803).

The spelling of 66130142 in words is "sixty-six million, one hundred thirty thousand, one hundred forty-two".