166354456 has 8 divisors (see below), whose sum is σ = 311914620. Its totient is φ = 83177224.

The previous prime is 166354451. The next prime is 166354457. The reversal of 166354456 is 654453661.

166354456 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166354451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10397146 + ... + 10397161.

Almost surely, 2^166354456 is an apocalyptic number.

It is an amenable number.

166354456 is a deficient number, since it is larger than the sum of its proper divisors (145560164).

166354456 is a wasteful number, since it uses less digits than its factorization.

166354456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20794313 (or 20794309 counting only the distinct ones).

The product of its digits is 259200, while the sum is 40.

The square root of 166354456 is about 12897.8469521079. The cubic root of 166354456 is about 549.9773610516.

The spelling of 166354456 in words is "one hundred sixty-six million, three hundred fifty-four thousand, four hundred fifty-six".