166964144 has 10 divisors (see below), whose sum is σ = 323493060. Its totient is φ = 83482064.

The previous prime is 166964143. The next prime is 166964179. The reversal of 166964144 is 441469661.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (166964143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5217614 + ... + 5217645.

It is an arithmetic number, because the mean of its divisors is an integer number (32349306).

Almost surely, 2^166964144 is an apocalyptic number.

It is an amenable number.

166964144 is a deficient number, since it is larger than the sum of its proper divisors (156528916).

166964144 is a wasteful number, since it uses less digits than its factorization.

166964144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10435267 (or 10435261 counting only the distinct ones).

The product of its digits is 124416, while the sum is 41.

The square root of 166964144 is about 12921.4605985546. The cubic root of 166964144 is about 550.6484297152.

The spelling of 166964144 in words is "one hundred sixty-six million, nine hundred sixty-four thousand, one hundred forty-four".