1066166607164 has 24 divisors (see below), whose sum is σ = 1974841923600. Its totient is φ = 502236080640.

The previous prime is 1066166607101. The next prime is 1066166607167. The reversal of 1066166607164 is 4617066616601.

It is a super-2 number, since 2×1066166607164² (a number of 25 digits) contains 22 as substring.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 38739029 + ... + 38766540.

It is an arithmetic number, because the mean of its divisors is an integer number (82285080150).

Almost surely, 2^{1066166607164} is an apocalyptic number.

It is an amenable number.

1066166607164 is a deficient number, since it is larger than the sum of its proper divisors (908675316436).

1066166607164 is a wasteful number, since it uses less digits than its factorization.

1066166607164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77505773 (or 77505771 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 50.

The spelling of 1066166607164 in words is "one trillion, sixty-six billion, one hundred sixty-six million, six hundred seven thousand, one hundred sixty-four".