166441797 has 20 divisors (see below), whose sum is σ = 250440960. Its totient is φ = 110155464.

The previous prime is 166441789. The next prime is 166441813. The reversal of 166441797 is 797144661.

It is not a de Polignac number, because 166441797 - 2³ = 166441789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166441727) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3868 + ... + 18650.

It is an arithmetic number, because the mean of its divisors is an integer number (12522048).

Almost surely, 2^166441797 is an apocalyptic number.

It is an amenable number.

166441797 is a deficient number, since it is larger than the sum of its proper divisors (83999163).

166441797 is a wasteful number, since it uses less digits than its factorization.

166441797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14934 (or 14925 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 166441797 is about 12901.2323829935. The cubic root of 166441797 is about 550.0735956613.

The spelling of 166441797 in words is "one hundred sixty-six million, four hundred forty-one thousand, seven hundred ninety-seven".