1066661616060 has 96 divisors (see below), whose sum is σ = 3350721454080. Its totient is φ = 281681499456.

The previous prime is 1066661616029. The next prime is 1066661616077. The reversal of 1066661616060 is 606161666601.

It is a super-2 number, since 2×1066661616060² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 1066661615997 and 1066661616015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9533212 + ... + 9644451.

It is an arithmetic number, because the mean of its divisors is an integer number (34903348480).

Almost surely, 2^{1066661616060} is an apocalyptic number.

1066661616060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1066661616060 is an abundant number, since it is smaller than the sum of its proper divisors (2284059838020).

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

1066661616060 is a wasteful number, since it uses less digits than its factorization.

1066661616060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19177784 (or 19177776 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The spelling of 1066661616060 in words is "one trillion, sixty-six billion, six hundred sixty-one million, six hundred sixteen thousand, sixty".