66130102352556 has 36 divisors (see below), whose sum is σ = 182358767094504. Its totient is φ = 20039424955200.

The previous prime is 66130102352543. The next prime is 66130102352579. The reversal of 66130102352556 is 65525320103166.

66130102352556 is a `hidden beast` number, since 6 + 6 + 1 + 30 + 10 + 2 + 3 + 52 + 556 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83497603585 + ... + 83497604376.

Almost surely, 2^{66130102352556} is an apocalyptic number.

66130102352556 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

66130102352556 is an abundant number, since it is smaller than the sum of its proper divisors (116228664741948).

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

66130102352556 is a wasteful number, since it uses less digits than its factorization.

66130102352556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166995207982 (or 166995207977 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 45.

The spelling of 66130102352556 in words is "sixty-six trillion, one hundred thirty billion, one hundred two million, three hundred fifty-two thousand, five hundred fifty-six".