66130136 has 24 divisors (see below), whose sum is σ = 131721420. Its totient is φ = 31118976.

The previous prime is 66130133. The next prime is 66130147. The reversal of 66130136 is 63103166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66130133) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11990 + ... + 16613.

Almost surely, 2^66130136 is an apocalyptic number.

It is an amenable number.

66130136 is a deficient number, since it is larger than the sum of its proper divisors (65591284).

66130136 is a wasteful number, since it uses less digits than its factorization.

66130136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28643 (or 28622 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 66130136 is about 8132.0437775506. The cubic root of 66130136 is about 404.3894392002.

It can be divided in two parts, 66130 and 136, that added together give a palindrome (66266).

The spelling of 66130136 in words is "sixty-six million, one hundred thirty thousand, one hundred thirty-six".