166359898 has 16 divisors (see below), whose sum is σ = 254654280. Its totient is φ = 81480256.

The previous prime is 166359811. The next prime is 166359911. The reversal of 166359898 is 898953661.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 163251729 + 3108169 = 12777^2 + 1763^2 .

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, 129636 + ... + 130912.

Almost surely, 2^166359898 is an apocalyptic number.

166359898 is a deficient number, since it is larger than the sum of its proper divisors (88294382).

166359898 is a wasteful number, since it uses less digits than its factorization.

166359898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2561.

The product of its digits is 2799360, while the sum is 55.

The square root of 166359898 is about 12898.0579158259. The cubic root of 166359898 is about 549.9833581741.

The spelling of 166359898 in words is "one hundred sixty-six million, three hundred fifty-nine thousand, eight hundred ninety-eight".