166501445 has 32 divisors (see below), whose sum is σ = 222621696. Its totient is φ = 119528640.

The previous prime is 166501411. The next prime is 166501459. The reversal of 166501445 is 544105661.

166501445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 166501445 - 2⁸ = 166501189 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 845087 + ... + 845283.

It is an arithmetic number, because the mean of its divisors is an integer number (6956928).

Almost surely, 2^166501445 is an apocalyptic number.

It is an amenable number.

166501445 is a deficient number, since it is larger than the sum of its proper divisors (56120251).

166501445 is a wasteful number, since it uses less digits than its factorization.

166501445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362 (or 340 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 166501445 is about 12903.5438930551. The cubic root of 166501445 is about 550.1392980505.

The spelling of 166501445 in words is "one hundred sixty-six million, five hundred one thousand, four hundred forty-five".