166040454 has 16 divisors (see below), whose sum is σ = 332328960. Its totient is φ = 55305480.

The previous prime is 166040443. The next prime is 166040489. The reversal of 166040454 is 454040661.

166040454 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×166040454² = 55138864729052232, which contains 22 as substring.

It is a Curzon number.

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, 982 + ... + 18249.

It is an arithmetic number, because the mean of its divisors is an integer number (20770560).

Almost surely, 2^166040454 is an apocalyptic number.

166040454 is an abundant number, since it is smaller than the sum of its proper divisors (166288506).

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

166040454 is a wasteful number, since it uses less digits than its factorization.

166040454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20675.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 166040454 is about 12885.6685507582. The cubic root of 166040454 is about 549.6311069033.

The spelling of 166040454 in words is "one hundred sixty-six million, forty thousand, four hundred fifty-four".