66130441661612 has 24 divisors (see below), whose sum is σ = 116113046301504. Its totient is φ = 32955320976512.

The previous prime is 66130441661561. The next prime is 66130441661681. The reversal of 66130441661612 is 21616614403166.

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, 3055373 + ... + 11899419.

It is an arithmetic number, because the mean of its divisors is an integer number (4838043595896).

Almost surely, 2^{66130441661612} is an apocalyptic number.

It is an amenable number.

66130441661612 is a deficient number, since it is larger than the sum of its proper divisors (49982604639892).

66130441661612 is a wasteful number, since it uses less digits than its factorization.

66130441661612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8850265 (or 8850263 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 47.

The spelling of 66130441661612 in words is "sixty-six trillion, one hundred thirty billion, four hundred forty-one million, six hundred sixty-one thousand, six hundred twelve".