166142453 has 8 divisors (see below), whose sum is σ = 168401376. Its totient is φ = 163898800.

The previous prime is 166142447. The next prime is 166142489. The reversal of 166142453 is 354241661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 166142453 - 2⁴ = 166142437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166142413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18998 + ... + 26328.

It is an arithmetic number, because the mean of its divisors is an integer number (21050172).

Almost surely, 2^166142453 is an apocalyptic number.

It is an amenable number.

166142453 is a deficient number, since it is larger than the sum of its proper divisors (2258923).

166142453 is a wasteful number, since it uses less digits than its factorization.

166142453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7635.

The product of its digits is 17280, while the sum is 32.

The square root of 166142453 is about 12889.6257897582. The cubic root of 166142453 is about 549.7436303801.

The spelling of 166142453 in words is "one hundred sixty-six million, one hundred forty-two thousand, four hundred fifty-three".