166244454 has 16 divisors (see below), whose sum is σ = 369432240. Its totient is φ = 55414800.

The previous prime is 166244423. The next prime is 166244473. The reversal of 166244454 is 454442661.

166244454 is a `hidden beast` number, since 166 + 2 + 44 + 454 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1539247 + ... + 1539354.

It is an arithmetic number, because the mean of its divisors is an integer number (23089515).

Almost surely, 2^166244454 is an apocalyptic number.

166244454 is an abundant number, since it is smaller than the sum of its proper divisors (203187786).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166244454 is a wasteful number, since it uses less digits than its factorization.

166244454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3078612 (or 3078606 counting only the distinct ones).

The product of its digits is 92160, while the sum is 36.

The square root of 166244454 is about 12893.5818917786. The cubic root of 166244454 is about 549.8561100175.

The spelling of 166244454 in words is "one hundred sixty-six million, two hundred forty-four thousand, four hundred fifty-four".