166164613144 has 32 divisors (see below), whose sum is σ = 317534688000. Its totient is φ = 81500459040.

The previous prime is 166164613133. The next prime is 166164613157. The reversal of 166164613144 is 441316461661.

It is a super-2 number, since 2×166164613144² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 166164613144.

It is a congruent number.

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, 622002 + ... + 848065.

It is an arithmetic number, because the mean of its divisors is an integer number (9922959000).

Almost surely, 2^166164613144 is an apocalyptic number.

It is an amenable number.

166164613144 is a deficient number, since it is larger than the sum of its proper divisors (151370074856).

166164613144 is a wasteful number, since it uses less digits than its factorization.

166164613144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1470343 (or 1470339 counting only the distinct ones).

The product of its digits is 248832, while the sum is 43.

The spelling of 166164613144 in words is "one hundred sixty-six billion, one hundred sixty-four million, six hundred thirteen thousand, one hundred forty-four".