66061002130 has 16 divisors (see below), whose sum is σ = 122123583000. Its totient is φ = 25710227712.

The previous prime is 66061002113. The next prime is 66061002191. The reversal of 66061002130 is 3120016066.

66061002130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 65532416049 + 528586081 = 255993^2 + 22991^2 .

It is a junction number, because it is equal to n+sod(n) for n = 66061002095 and 66061002104.

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, 89271255 + ... + 89271994.

Almost surely, 2^66061002130 is an apocalyptic number.

66061002130 is a deficient number, since it is larger than the sum of its proper divisors (56062580870).

66061002130 is a wasteful number, since it uses less digits than its factorization.

66061002130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178543293.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 66061002130 its reverse (3120016066), we get a palindrome (69181018196).

The spelling of 66061002130 in words is "sixty-six billion, sixty-one million, two thousand, one hundred thirty".