1066166607163 has 12 divisors (see below), whose sum is σ = 1240327554552. Its totient is φ = 913788617280.

The previous prime is 1066166607101. The next prime is 1066166607167. The reversal of 1066166607163 is 3617066616601.

It is a de Polignac number, because none of the positive numbers 2^k-1066166607163 is a prime.

It is a super-2 number, since 2×1066166607163² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1066166607167) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 149053 + ... + 1467838.

It is an arithmetic number, because the mean of its divisors is an integer number (103360629546).

Almost surely, 2^{1066166607163} is an apocalyptic number.

1066166607163 is a deficient number, since it is larger than the sum of its proper divisors (174160947389).

1066166607163 is a wasteful number, since it uses less digits than its factorization.

1066166607163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1630362 (or 1630355 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 49.

The spelling of 1066166607163 in words is "one trillion, sixty-six billion, one hundred sixty-six million, six hundred seven thousand, one hundred sixty-three".